Service
Workshop Manual
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis
Edition 06.2005
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Service Department. Technical Information
Service
List of Workshop Manual Repair GroupsList of Workshop Manual
Repair GroupsList of Workshop Manual Repair Groups
Repair Group
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
01 - Self-diagnosis, electrical checks
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Technical information should always be available to the foremen and mechanics, because their
careful and constant adherence to the instructions is essential to ensure vehicle road-worthiness and
safety. In addition, the normal basic safety precautions for working on motor vehicles must, as a
matter of course, be observed.
All rights reserved.
No reproduction without prior agreement from publisher.
Copyright © 2010 Audi AG, Ingolstadt
00050806920
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Contents
01 - Self-diagnosis, electrical checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
1.1
1.2
2
2.1
3
3.1
3.2
3.3
4
4.1
4.2
4.3
4.4
5
6
7
8
9
10
10.1
10.2
10.3
11
11.1
11.2
11.3
11.4
11.5
12
12.1
12.2
12.3
Self-diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Self-diagnosis function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety functions of gearbox control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical/electronic components and fitting locations . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and installing automatic gearbox control unit J217 . . . . . . . . . . . . . . . . . . . . . .
Performing self-diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting vehicle diagnostic, testing and information system VAS 5051 and selecting
functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of selectable functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interrogating fault memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interrogating fault memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fault tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fault tables: Fault code 16987 / P0603 up to fault code 17968 / P1560 . . . . . . . . . . . . . .
Fault tables: Fault code 18112 / P1704 up to fault code 18269 / P1861 . . . . . . . . . . . . . .
Final control diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Erasing fault memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ending output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Resetting adaption values for gearbox control unit (basic setting) . . . . . . . . . . . . . . . . . . . .
Coding control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measured value block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reading measured value block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview of selectable display groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting adapter V.A.G 1598/20 (test box) to automatic gearbox control unit J217 . .
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
Test table permitted
. . . . . unless
. . . . authorised
. . . . . .by. AUDI
. . . AG.
. . .AUDI
. . .AG
. .does
. . .not. .guarantee
. . . . .or. accept
. . . . any
. . liability
..................
with respect
to the correctness
of information
in this
document.
Copyright
AUDIgearbox
AG.
Checking wiring
between
automatic
gearbox
control
unit
J217byand
..........
Checking multi-function switch F125 with 8-pin connector . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking multi-function switch F125 with 10-pin connector . . . . . . . . . . . . . . . . . . . . . . . .
CAN bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking a “two-wire bus system” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Two control units communicating via a “two-wire bus system” . . . . . . . . . . . . . . . . . . . . . .
Three or more control units communicating via a “two-wire bus system” . . . . . . . . . . . . . .
Contents
1
1
1
2
3
10
11
11
11
13
14
14
15
15
28
42
47
48
49
50
52
52
52
54
66
67
69
80
82
85
89
89
90
91
i
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
ii
Contents
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
01 –
Self-diagnosis, electrical checks
1
Self-diagnosis
1.1
Self-diagnosis function
General notes
♦ The automatic gearbox is controlled electro-hydraulically.
♦ The automatic gearbox control unit -J217- is supplied with in‐
formation from components which influence gear selection.
With this information the control unit generates signals to con‐
trol the relevant solenoid valves in the valve body. The sole‐
noid valves direct the fluid pressure produced by the ATF
pump to close the appropriate brakes in the gearbox.
♦ The term “self-diagnosis” relates specifically to the electrical
and electronic part of the control system.
Fault detection by gearbox control unit
♦ The control unit detects faults during vehicle operation and
stores them in a fault memory
⇒ “4.2 Fault tables”, page 15 .
♦ Before starting fault-finding procedure, always initiate self-di‐
agnosis and interrogate the fault memory. For interrogation
use the vehicle diagnostic, testing and information system VAS 5051- or the vehicle diagnostic and service information
system -VAS 5052- .
Note
The procedure for performing self-diagnosis with the vehicle di‐
agnostic, testing and information system -VAS 5051- is described
in this Workshop Manual.
♦ After evaluating the information, the control unit differentiates
between sporadic and static (currently present) faults and
storesProtected
them by
in copyright.
the memory.
Copying for private or commercial purposes, in part or in whole, is not
♦ When awith
fault
occurs,
it is stored
as a static
(currently
present)
respect
to the correctness
of information
in this document.
Copyright
by AUDI AG.
fault. If the fault does not occur again for a a predetermined
period or distance travelled, the fault will then be reclassified
as a sporadic fault.
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
♦ Sporadically occurring faults are displayed as “sporadic” when
interrogating the fault memory.
♦ A fault also becomes "sporadic" when the ignition is switched
off and on during interrogation or when the fault memory is not
erased after repairs.
♦ When sporadic faults do not occur again they are automati‐
cally erased after 40 gearbox cold start cycles (ATF tempera‐
ture below 71 °C) followed by gearbox warm-up (increase of
ATF temperature by at least 21 °C).
♦ Inoperative CAN bus signals will be detected by the control
unit. Defective CAN bus wiring, e.g. open circuits, cannot be
directly detected. Conclusions as to where the CAN bus wiring
is defective are not possible until all control unit fault memories
have been interrogated.
1. Self-diagnosis
1
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
1.2
Safety functions of gearbox control unit
♦ If one or more of the system components or sensors fails or
has a fault, the automatic gearbox control unit -J217- will
switch to a corresponding back-up mode, or emergency run‐
ning program. This enables the automatic gearbox to continue
operating without becoming damaged, but will impair the op‐
eration and smoothness of the gearshifts.
♦ When short-term implausibilities occur during a gearshift the
automatic gearbox control unit -J217- can shift up into the next
gear. This particular fault will be stored only if it occurs three
times during a driving cycle (engine start; drive and engine off).
Mechanical emergency running mode with active control unit
If a critical fault occurs and the automatic gearbox control unit J217- is active, the gear which is currently selected will initially be
maintained. As soon as it is safe to do so (i.e. without damaging
the gearbox or affecting driving), the automatic gearbox control
unit -J217- will switch to the “Mechanical emergency running
mode with active control unit”.
♦ Gearbox shifts out of whichever of the forward gears is en‐
gaged and selects hydraulic 4th gear. Torque converter lockup clutch is released. No electrical signals to solenoid valves.
♦ Maximum shift pressure applied to power-transmitting com‐
ponents.
♦ Reverse gear can be engaged. Selector lever lock (in positions
“P” and “N”) is active.
♦ All segments of the selector lever position display -Y6- in the
dash panel insert light up together -arrow-.
Mechanical emergency running mode with inactive control unit
If the automatic gearbox control unit -J217- fails (e.g. if the voltage
supply fails or the connector becomes detached), the gearbox will
immediately switch to “Mechanical emergency running mode with
inactive control unit” and continue to operate.
♦ Gearbox shifts out of whichever of the forward gears is en‐
gaged and selects hydraulic 4th gear. Torque converter lockup clutch is released. No electrical signals to solenoid valves.
♦ Maximum shift pressure applied to power-transmitting com‐
ponents.
Protected
by can
copyright.
Copying for private
or commercial
in part
or in whole, is not
♦ Reverse
gear
be engaged.
Selector
leverpurposes,
lock (in
positions
permitted
authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
“P” and
“N”) unless
is inactive.
with respect to the correctness of information in this document. Copyright by AUDI AG.
♦ None of the segments of the selector lever position display Y6- in the dash panel insert light up -arrow-.
♦ Automatic gearbox control unit -J217- is not functioning at all,
i.e. it is not possible to initiate self-diagnosis.
2
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
2
Electrical/electronic components and fitting locations
1 - Automatic gearbox control
unit -J217❑ Checked via self-diag‐
nosis
❑ Fitting location
⇒ page 5
❑ Removing and installing
⇒ page 10
❑ Unplugging multi-pin
connector on control
unit ⇒ page 6
2 - Diagnostic connector
❑ Fitting location up to the
end of 1998
⇒ page 5
❑ Fitting location from the
end of 1998 onwards
⇒ page 5
3 - Selector lever position indi‐
cator -Y6❑ Fitting location: In dash
panel insert
⇒ page 7
❑ If selector lever position
indicator does not light
up, this indicates that
gearbox is in emergen‐
cy running mode with
gearbox control unit in‐
active ⇒ page 2
❑ If all segments of selec‐
tor lever position indica‐
tor light up together, this
indicates that gearbox is
in mechanical emergen‐
cy running mode with
gearbox control unit active ⇒ page 2
4 - Speedometer sender (Hall sender, on gearbox) -G22❑ Fitting location ⇒ page 8
❑ Checked via self-diagnosis
5 - Internal wiring harness in gearbox with integrated gearbox oil (ATF) temperature sender -G93❑ Fitting location ⇒ page 6
❑ Gearbox oil (ATF) temperature sender -G93- is checked via self-diagnosis
6 - Valve body
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
6
❑ Fitting location ⇒ pagepermitted
with respect to the correctness of information in this document. Copyright by AUDI AG.
❑ The following valves are attached to the valve body: solenoid valve 1 -N88- , solenoid valve 2 -N89- ,
solenoid valve 3 -N90- , automatic gearbox pressure regulating valve 1 -N215- , automatic gearbox
pressure regulating valve 2 -N216- , automatic gearbox pressure regulating valve 3 -N217- , automatic
gearbox pressure regulating valve 4 -N218- and automatic gearbox pressure regulating valve 5 -N233❑ All components are checked via self-diagnosis
7 - Multi-function switch -F125❑ Fitting location ⇒ page 7
❑ Checked via self-diagnosis
2. Electrical/electronic components and fitting locations
3
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
8 - Gearbox input speed sender -G182❑ Fitting location ⇒ page 8
❑ Checked via self-diagnosis
9 - Gearbox speed sender -G38- / gearbox output speed sender -G195❑ Component designation depending on vehicle version
❑ Fitting location ⇒ page 8
❑ Checked via self-diagnosis
10 - Starter inhibitor relay -J207❑ Fitting location up to model year 1998 ⇒ page 8
❑ Fitting location from model year 1999 onwards ⇒ page 9
11 - tiptronic switch -F189❑ Fitting location ⇒ page 7
❑ Checked via self-diagnosis
12 - Selector lever lock solenoid -N110❑ Fitting location ⇒ page 7
❑ Checked via self-diagnosis
13 - Throttle valve potentiometer -G69❑ Only on vehicles with throttle cable: Signal from throttle valve potentiometer is used to detect throttle load
❑ Fitting location: Integrated in throttle valve module -J338❑ Signal is transmitted from Motronic control unit -J220- to automatic gearbox control unit -J217- . If throttle
valve potentiometer -G69- is displayed as cause of the fault, interrogate fault memory of engine control
unit
❑ Signal from throttle valve potentiometer -G69- can only be checked in measured value block
⇒ page 52
14 - Accelerator position sender -G79- / accelerator position sender 2 -G185❑ Applies to vehicles with electronic throttle only
❑ Accelerator position sender -G79- on vehicles with TDI engine
Protected
by copyright. Copying
for private
or commercial
in part or inposition
whole, is not
❑ Accelerator
position
sender
-G79-purposes,
/ accelerator
sender 2 -G185- on vehicles with petrol engine
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
❑withFitting
⇒ page
9 in this document. Copyright by AUDI AG.
respect tolocation
the correctness
of information
❑ The signal is transmitted from engine control unit to automatic gearbox control unit -J217- . If accelerator
position sender -G79- / accelerator position sender 2 -G185- is displayed as cause of the fault, interrogate
fault memory of engine control unit
15 - Kick-down switch -F8❑ Fitting location ⇒ page 9
❑ Can be checked via reading measured value block ⇒ page 52 and can be checked electrically
16 - Brake light switch -F❑ Fitting location ⇒ page 9
❑ Vehicles with throttle cable: Signal is directly transmitted to automatic gearbox control unit -J217❑ Vehicles with throttle cable: Can be checked via reading measured value block ⇒ page 52 and can be
checked electrically
❑ Vehicles with electronic throttle: Signal is transmitted from engine control unit to automatic gearbox con‐
trol unit -J217- . If brake light switch -F- is displayed as cause of the fault, interrogate fault memory of
engine control unit
❑ Vehicles with electronic throttle: Signal from brake light switch -F- can only be checked in measured value
block ⇒ page 52
17 - Cruise control system switch -E45❑ Fitting location ⇒ page 9
4
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Diagnostic connector (up to the end of 1998)
♦ Fitting location: Under ashtray in centre console.
– Release ashtray from centre console by pressing small lever.
– Remove ashtray from centre console and detach cover for di‐
agnostic connector.
Diagnostic connector (from the end of 1998 onwards)
♦ Fitting location: Below knee bolster on left side of steering
wheel.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Automatic gearbox control unit -J217♦ Fitting location: In electronics box in plenum chamber (rightside) -3-.
♦ Removing and installing ⇒ page 10 .
Note
-Item 1-, -item 2- and -arrow- can be disregarded.
2. Electrical/electronic components and fitting locations
5
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Unplugging multi-pin connector on automatic gearbox control unit
-J217– Switch off ignition and wait about 30 seconds.
– Release connector by pressing catch in -direction of arrow-.
Valve body
♦ Fitting location: Bolted to underside of gearbox housing and
covered by gearbox oil pan.
♦ Attached to valve body: Solenoid valve 1 -N88- , solenoid
valve 2 -N89- , solenoid valve 3 -N90- , automatic gearbox
pressure regulating valve 1 -N215- , automatic gearbox pres‐
sure regulating valve 2 -N216- , automatic gearbox pressure
regulating valve 3 -N217- , automatic gearbox pressure regu‐
lating valve 4 -N218- and automatic gearbox pressure regu‐
lating valve 5 -N233- .
♦ Removing and installing valve body ⇒ Automatic gearbox 01L,
four-wheel drive; Rep. Gr. 38 .
Note
-Arrows- can be disregarded.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Internal wiring harness in gearbox with integrated gearbox oil
(ATF) temperature sender -G93♦ Fitting location of internal wiring harness in gearbox: Attached
to valve body.
♦ The wiring harness can be removed and installed with gearbox
installed and after removing the valve body ⇒ Automatic gear‐
box 01L, four-wheel drive; Rep. Gr. 38 .
♦ Fitting location of gearbox oil (ATF) temperature sender G93- : Integrated into wiring harness.
♦ If gearbox oil (ATF) temperature sender -G93- is defective, the
complete wiring harness must be renewed ⇒ Automatic gear‐
box 01L, four-wheel drive; Rep. Gr. 38 .
A - Plug-in connections for solenoid valves and pressure regulat‐
ing valves
B - Bracket for wiring harness
6
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Selector lever lock solenoid -N110♦ Fitting location: In selector mechanism.
♦ Removing and installing ⇒ Automatic gearbox 01L, four-wheel
drive; Rep. Gr. 37 .
Note
-Item E-, -item Z- and -arrows- can be disregarded.
tiptronic switch -F189♦ Fitting location: In selector mechanism.
♦ tiptronic switch -F189- consists of tiptronic recognition switch
-1- and shift-up/shift down switch -2-.
♦ Removing and installing tiptronic switch -F189- ⇒ Automatic
gearbox 01L, four-wheel drive; Rep. Gr. 37 .
Multi-function switch -F125♦ Fitting location: On gearbox (left-side).
♦ Removing and installing ⇒ Automatic gearbox 01L, four-wheel
drive; Rep. Gr. 37 .
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Selector lever position indicator -Y6♦ Fitting location: Integrated into dash panel insert -arrow-.
♦ If the selector lever position indicator -Y6- is defective, renew
complete dash panel insert ⇒ Electrical system; Rep. Gr. 90 .
2. Electrical/electronic components and fitting locations
7
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Gearbox input speed sender -G182♦ Fitting location: Fitted on reverse side of valve body.
♦ Removing and installing ⇒ Automatic gearbox 01L, four-wheel
drive; Rep. Gr. 38 .
Gearbox speed sender -G38- / gearbox output speed sender G195♦ Fitting location: The sender -arrow- is fitted on the outer right
side of the transfer gearbox housing.
♦ Removing and installing ⇒ Automatic gearbox 01L, four-wheel
drive; Rep. Gr. 38 .
Speedometer sender (Hall sender, on gearbox) -G22♦ Fitting location: In bearing bracket for flange shaft (left-side).
♦ Removing and installing ⇒ Automatic gearbox 01L, four-wheel
drive; Rep. Gr. 37 .
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Starter inhibitor relay -J207- up to model year 1998
♦ Fitting location: On central electrics unit - front side, in elec‐
tronics box on front passenger side.
♦ Identification ⇒ Current flow diagrams, Electrical fault finding
and Fitting locations.
8
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Starter inhibitor relay -J207- from model year 1999 onwards
♦ Fitting location: On auxiliary fuse and relay carrier in electron‐
ics box, in front passenger's footwell.
♦ Identification ⇒ Current flow diagrams, Electrical fault finding
and Fitting locations.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect
to the correctness
of information
in this document. Copyright
AUDI AG. 2
Accelerator
position
sender
-G79- / accelerator
positionbysender
-G185- and kick-down switch -F8♦ Fitting location:
1-
Accelerator position sender -G79- / accelerator position
sender 2 -G185- is bolted to pedal bracket.
2-
Kick-down switch -F8- is bolted onto floor under pedals.
♦ Removing and installing ⇒ Rep. Gr. 20 .
Brake light switch -F♦ Fitting location: On pedal cluster.
♦ Removing and installing ⇒ Brake system; Rep. Gr. 46 .
Cruise control system switch -E45♦ Fitting location: On steering column switch.
2. Electrical/electronic components and fitting locations
9
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
2.1
Removing and installing automatic gear‐
box control unit -J217-
Removing
– Unscrew bolts -1- a few turns.
– Unclip plenum chamber cover -2- (right-side) -arrows- and de‐
tach cover.
– Remove cross-head bolts -arrows- (for access to bolt at rear
left lever out cover -1- in cowl panel trim).
– Detach cover for electronics box in plenum chamber.
– Unclip control unit from electronics box -arrows-
by copyright.
for private
or commercial
purposes, in part or in whole, is not
– Unplug multi-pinProtected
connector
fromCopying
gearbox
control
unit -3-.
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
– To unplug multi-pin connector release connector by pressing
catch in -direction of arrow-. In order to do this, switch off the
ignition first and wait for at least 30 seconds.
– Remove securing bolts and pull gearbox control unit together
with bracket out of electronics box.
Installing
Installation is carried out in reverse sequence; note the following:
– Check electronics box for moisture and seal if necessary.
– Check wiring.
10
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
3
Performing self-diagnosis
3.1
Safety precautions
Observe the following precautions if test and measuring instru‐
ments are required during a test drive:
WARNING
♦ Test equipment must always be secured on the rear seat
and operated from that position by a second person.
♦ If test and measuring instruments are operated from the
front passenger's seat and the vehicle is involved in an
accident, there is a possibility that the person sitting in this
seat may suffer serious injuries when the airbag is trig‐
gered.
Observe the following precautions to avoid possible injury and/or
the destruction of electrical and electronic components:
♦ Switch off ignition before disconnecting and connecting meas‐
uring instruments and testers.
♦ During some of the tests the control unit may detect a fault and
store it in the memory. The fault memory should therefore be
interrogated and, if necessary, erased after completing all
tests and repair work.
Caution
♦ On vehicles with telematics: activate service mode of tel‐
ematics control unit before
disconnecting
battery
⇒ Radio,
Protected
by copyright. Copying
for private
or commercial purposes, in part or in whole, is not
permitted unless
authorised
by AUDI
telephone, navigation system;
Rep.
Gr. 91
. AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
♦ Always switch off ignition before disconnecting or con‐
necting the battery to ensure gearbox control unit is not
damaged.
3.2
Connecting vehicle diagnostic, testing
and information system -VAS 5051- and
selecting functions
Requirements:
•
Selector lever in position “P” or “N” and handbrake applied.
•
Vehicle voltage supply OK.
•
Fuses OK ⇒ Current flow diagrams, Electrical fault finding and
Fitting locations
•
Earth connections for gearbox OK.
– Check earth connections for corrosion and poor contact, repair
if necessary ⇒ Current flow diagrams, Electrical fault finding
and Fitting locations.
– Check battery earth strap and earth strap between battery and
gearbox.
3. Performing self-diagnosis
11
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Vehicles up to approx. the end of 1998:
– Release ashtray from centre console by pressing small lever.
– Remove ashtray from centre console and detach cover for di‐
agnostic connector.
– Connect the vehicle diagnostic, testing and information sys‐
tem -VAS 5051- to the diagnostic connector using diagnostic
cable -VAS 5051/1- with the ignition switched off.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Vehicles from approx. the end of 1998 onwards:
– Connect the vehicle diagnostic, testing and information sys‐
tem -VAS 5051- to the diagnostic connector using diagnostic
cable -VAS 5051/1- with the ignition switched off.
All models:
WARNING
Observe safety precautions ⇒ page 11 .
Note
If a fault message appears on the display ⇒ Operating instruc‐
tions for vehicle diagnostic, testing and information system VAS 5051- .
– Switch on ignition.
or
– Start engine.
– Depress brake pedal once on vehicles with throttle cable.
Display on -VAS 5051- :
– Touch Vehicle self-diagnosis button.
12
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display on -VAS 5051- :
Note
Select the diagnostic function “00 - Interrogate fault memory complete system” from list -1- to start the automatic test se‐
quence, i.e. fault memories of all vehicle systems with selfdiagnosis capability will be interrogated.
– From list -1- select vehicle system “02 - Gearbox electronics”.
– Wait until next screen display appears.
Display on -VAS 5051- :
2 - Control unit identification of gearbox control unit.
Control unit identification of gearbox control unit (example)
02 - Gearbox
electronics
4D0927156..
AG5 01L
4.2l5V
RoW market:
1009
Coding 1
Workshop
code 12345
Vehicle system
Part No.; for allocation refer to ⇒ Parts cata‐
logue
5-speed automatic gearbox 01L
4.2 litre engine, 5-valve
Rest of the world (unless otherwise stated, ap‐
plicable for all countries, except USA and Can‐
ada)
Control unit software version (data level); 3digit display, e.g. D26, on versions installed
earlier
Control unit coding ⇒ page 50
Workshop code of -VAS 5051- which was used
to perform the last coding
If readout “Vehicle system not available” appears in display zone
-1-:
– Check:
♦ Voltage supply to diagnostic connector ⇒ Current flow dia‐
grams, Electrical fault finding and Fitting locations.
♦ Wiring connections from diagnostic connector
to automatic
Protected
by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless
authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
gearbox control unit -J217- ⇒ Current flow diagrams,
Electrical
with respect to the correctness of information in this document. Copyright by AUDI AG.
fault finding and Fitting locations.
3.3
List of selectable functions
– The following diagnostic functions shown in display -1- are
available:
Diagnostic functions
02
03
05
06
07
08
Interrogate fault memory
Final control diagnosis
Erase fault memory
End output
Code control unit
Read measured value block
Page
⇒ page 14
⇒ page 42
⇒ page 47
⇒ page 48
⇒ page 50
⇒ page 52
All other diagnostic functions displayed cannot be selected or
need not be considered.
3. Performing self-diagnosis
13
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
4
Interrogating fault memory
4.1
Interrogating fault memory
– Connect vehicle diagnostic, testing and information system VAS 5051- ⇒ page 11 and select vehicle system “02 - Gearbox
electronics”. The ignition must be switched on.
Display on -VAS 5051- :
– From list -1- select diagnostic function “02 - Interrogate fault
memory”.
Display on -VAS 5051- :
-1- Content of fault memory
-2- Fault
0 faults detected
or
X faults detected
Fault code
Fault location
Fault type
Protected
by copyright.
Copying for private or commercial purposes, in part or in whole, is not
A - If one or more faults have
been
detected:
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect
the correctness of information
– Print out information on screen
ortoself-diagnosis
log. in this document. Copyright by AUDI AG.
– End function “02 - Interrogate fault memory” by touching ←
button.
Display on -VAS 5051- :
– Rectify fault(s) according to fault tables ⇒ page 15 .
– Again select diagnostic function “02 - Interrogate fault memo‐
ry” from list -1- and erase fault memory ⇒ page 47 .
– From list -1- select diagnostic function “06 - End output”
⇒ page 48 .
B - If no fault has been detected:
– End function “02 - Interrogate fault memory” by touching ←
button.
– Select diagnostic function “06 - End output” ⇒ page 48 from
the list.
14
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
4.2
Fault tables
Note
♦ The following tables list all the possible faults which can be
detected by the automatic gearbox control unit -J217- and are
displayed on the -VAS 5051- when the fault memory is inter‐
rogated.
♦ The content of the fault memory is retained until the memory
is erased; erasing fault memory ⇒ page 47 .
♦ The fault table is sorted according to the 5-digit fault code and
the P code in the left-hand column.
♦ Sporadic faults (which occur intermittently) are displayed as
“sporadic”.
♦ Components that are indicated as being faulty by the -
VAS 5051- should not be renewed immediately. Always start
by checking the wiring and connectors to these components
according to current flow diagram. Also check the earth con‐
nections according to current flow diagram. This is particularly
important for faults displayed as “sporadic”.
4.3
Fault tables: Fault code 16987 / P0603 up to fault code 17968 / P1560
by copyright. Copying for private or commercial purposes, in part or in whole, is not
Fault code Protected
16987
/ P0603
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Display on -VAS 505116987 / P0603
Control unit defective
Possible cause of fault
How to rectify fault
♦ Automatic gearbox control unit - – Check gearbox for mechanical
J217- defective
and hydraulic faults
– Check electrical/electronic com‐
ponents and wiring
– Check electronics box of gear‐
box control unit for moisture and
seal if necessary.
– Renew control unit ⇒ page 3
Fault code 16989 / P0605
Display on -VAS 505116989 / P0605
Control unit defective
Possible cause of fault
How to rectify fault
♦ Automatic gearbox control unit - – Check gearbox for mechanical
J217- defective
and hydraulic faults
– Check electrical/electronic com‐
ponents and wiring
– Check electronics box of gear‐
box control unit for moisture and
seal if necessary.
– Renew control unit ⇒ page 3
Fault code 17084 / P0700
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
17084 / P0700
Control unit defective
4. Interrogating fault memory
15
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
♦ Automatic gearbox control unit - – Check gearbox for mechanical
J217- defective
and hydraulic faults
– Check electrical/electronic com‐
ponents and wiring
– Check electronics box of gear‐
box control unit for moisture and
seal if necessary.
– Renew control unit ⇒ page 10
Fault code 17087 / P0703
Display on -VAS 505117087 / P0703
Brake light switch -FElectrical fault in circuit
Possible cause of fault
♦ Wiring from component to en‐
gine control unit defective
How to rectify fault
– Read measured value block 003
⇒ page 56
– Vehicles up to model year 2000:
Perform electrical check, test
step No. 8 ⇒ page 73
– Vehicles from model year 2001
onwards: Interrogate fault mem‐
ory of engine control unit ⇒ Rep.
Gr. 01
♦ Open circuit or short to earth or – Read measured value block 125
positive in CAN bus wiring
⇒ page 65
– Check CAN bus wiring
♦ Brake light
Protected by copyright. Copying for
commercial purposes, in part or in whole, is not
⇒ private
pageor89
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
switchwith-Fdefective
– Renew
brake
switch
⇒ by AUDI AG.
respect
to the correctness
of information
in thislight
document.
Copyright
Brake system; Rep. Gr. 46
Explanatory notes
♦ Vehicles with throttle cable: The fault is pre-set when the ig‐
nition is switched on and will be erased when the brake pedal
is pressed once, provided that brake light switch -F- is OK.
Before interrogating the fault memory, press the brake pedal
once to erase the pre-set fault.
♦ Vehicles with electronic throttle: The signal from brake light
switch -F- is transmitted to automatic gearbox control unit J217- by engine control unit.
♦ The signals between the control units are exchanged via a
CAN bus ⇒ page 89 .
Fault code 17090 / P0706
Display on -VAS 505117090 / P0706
Driving range sensor ⇒ -F125Implausible signal
Possible cause of fault
How to rectify fault
♦ Selector lever cable incorrectly – Adjust selector lever cable ⇒
adjusted
Automatic gearbox 01L, fourwheel drive; Rep. Gr. 37
♦ Multi-pin connector on multi– Read measured value block 004
function switch not plugged in
⇒ page 58
♦ Open circuit or short to earth in – Check multi-pin connector for
wiring to component
contact corrosion and moisture
♦ Open circuit in voltage supply
– Check wiring and connector ac‐
cording to current flow diagram
16
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
♦ Multi-function switch -F125- de‐ – Check
fective
⇒ “11.4 Checking multi-function
switch F125 with 8-pin connec‐
tor”, page 82 or
⇒ “11.5 Checking multi-function
switch F125 with 10-pin connec‐
tor”, page 85
Explanatory notes
♦ The normally used term for the electrical component "driving
range sensor" is multi-function switch -F125- .
Fault code 17094 / P0710
Display on -VAS 505117094 / P0710
Gearbox oil temperature sender G93Electrical fault in circuit
Possible cause of fault
How to rectify fault
♦ Open circuit or short to earth or – Read measured value block 004
positive in wiring to component
⇒ page 56
– Check wiring and connectors
according to current flow dia‐
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Gearbox oil (ATF) temperature – Perform electrical check, test
sender -G93- defective
step No. 21 ⇒ page 79
Explanatory notes
♦ The gearbox oil (ATF) temperature sender -G93- is integrated
Protected
copyright.
Copying
for private wiring
or commercial
purposes,
in part
or in whole,
is not
intobythe
internal
gearbox
harness
(on
valve
body).
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Fault code 17095 / P0711
Display on -VAS 505117095 / P0711
Gearbox oil temperature sender G93Implausible signal
Possible cause of fault
How to rectify fault
♦ Open circuit or short to earth or – Read measured value block 004
⇒ page 56
positive in wiring to component
– Check wiring and connectors
according to current flow dia‐
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Gearbox oil (ATF) temperature – Perform electrical check, test
sender -G93- defective
step No. 21 ⇒ page 79
Explanatory notes
♦ This fault will be detected if ATF temperature does not rise or
rises abruptly after the engine is started.
♦ The gearbox oil (ATF) temperature sender -G93- is integrated
into the internal gearbox wiring harness (on valve body).
4. Interrogating fault memory
17
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Fault code 17096 / P0712
Display on -VAS 505117096 / P0712
Gearbox oil temperature sender G93Signal too small
Possible cause of fault
How to rectify fault
♦ Open circuit or short to earth or – Read measured value block 004
positive in wiring to component
⇒ page 56
– Check wiring and connectors
according to current flow dia‐
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Gearbox oil (ATF) temperature – Perform electrical check, test
sender -G93- defective
step No. 21 ⇒ page 79
Explanatory notes
♦ The gearbox oil (ATF) temperature sender -G93- is integrated
into the internal gearbox wiring harness (on valve body).
Fault code 17097 / P0713
Display on -VAS 505117097 / P0713
Gearbox oil temperature sender G93Signal too large
Possible cause of fault
♦ ATF level not OK
How to rectify fault
– Check ATF level ⇒ Automatic
gearbox 01L, four-wheel drive;
Rep. Gr. 37
♦ Open circuit or short to earth or – Read measured value block 004
positive in wiring to component
⇒ page 56
– Check wiring and connectors
according to current flow dia‐
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Gearbox oil (ATF) temperature – Perform electrical check, test
sender -G93- defective
step No. 21 ⇒ page 79
Explanatory notes
♦ The gearbox oil (ATF) temperature sender -G93- is integrated
into the internal gearbox wiring harness (on valve body).
Fault code 17100 / P0716
Display on -VAS 505117100 / P0716
Gearbox input speed sender G182Implausible signal
Possible cause of fault
How to rectify fault
♦ Open circuit or short to earth or – Read measured value block 001
⇒ page 54
positive in wiring to component
– Check wiring and connector ac‐
cording to current flow diagram.
Also check connector for con‐
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liabilitytact corrosion or moisture
with respect to the correctness of information in this document. Copyright by AUDI AG.
♦ Gearbox input speed sender - – Perform electrical check, test
G182- defective
step No. 20 ⇒ page 79
♦ Screening for gearbox input
speed sender -G182- defective
18
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
♦ Gearbox output speed signal in‐ – Rectify fault as described for
correct
fault code 17105 / P0721
⇒ page 19
♦ ATF level not OK
– Check ATF level ⇒ Automatic
gearbox 01L, four-wheel drive;
Rep. Gr. 37
♦ Brakes slipping
– Assess wear by checking ATF
for colour and contamination ⇒
Servicing automatic gearbox
01L, four-wheel drive; Rep. Gr.
38
– Read measured value block
005 … 007 ⇒ page 56 and per‐
form road test to determine
which selector elements are de‐
fective or not activated
Explanatory notes
♦ Conditions for fault detection: The selector lever must be pos‐
itively engaged in a drive gear position (“D”, “S” or “4”, “3” or
“2”), i.e. not between two gears. The engine speed must be
higher than 608 rpm when driving. The gearbox output speed
must be higher than 416 rpm when driving.
♦ The fault will be displayed if the conditions for fault detection
are met and the gearbox input speed is either 0 rpm or higher
than 8000 rpm.
Fault code 17105 / P0721
Display on -VAS 505117105 / P0721
Gearbox output speed sender G195Implausible signal
Possible cause of fault
How to rectify fault
♦ Open circuit or short to earth or – Read measured value block 001
positive in wiring to component
⇒ page 54
– Check wiring and connector ac‐
cording to current flow diagram.
Also check connector for con‐
tact corrosion or moisture
♦ Gearbox output speed sender - – Perform electrical check, test
G195- defective
step No. 19 ⇒ page 78
Screening
forprivate
gearbox
output
Protected by♦
copyright.
Copying for
or commercial
purposes, in part or in whole, is not
-G195defective
permitted unlessspeed
authorisedsender
by AUDI AG.
AUDI AG
does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
♦ ATF level not OK
♦ Brakes slipping or solenoid
valve defective
– Check ATF level ⇒ Automatic
gearbox 01L, four-wheel drive;
Rep. Gr. 37
– Assess wear by checking ATF
for colour and contamination ⇒
Servicing automatic gearbox
01L, four-wheel drive; Rep. Gr.
38
– Read measured value block
005 … 007 ⇒ page 56 and per‐
form road test to determine
which selector elements are de‐
fective or not activated
Explanatory notes
♦ In older current flow diagrams the gearbox output speed send‐
er -G195- is referred to as gearbox speed sender -G38- .
4. Interrogating fault memory
19
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Fault code 17114 / P0730
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
17114 / P0730
♦ ATF level not OK
Gear/transmission ratio monitoring
Wrong transmission ratio
♦ ATF dirty
– Check ATF level ⇒ Automatic
gearbox 01L, four-wheel drive;
Rep. Gr. 37
– Assess wear by checking ATF
for colour and contamination ⇒
Servicing automatic gearbox
♦ Brake slipping/defective or sol‐
01L, four-wheel drive; Rep. Gr.
enoid valve dirty/defective
38
– Check solenoid valves (read
measured value block
005 … 007 ⇒ page 59 )
♦ Gearbox input speed sender - – Rectify fault as described for
G182- defective
fault code 17100 / P0716
⇒ page 18
♦ Gearbox output speed sender - – Rectify fault as described for
G195- defective
fault code 17105 / P0721
⇒ page 19
♦ Incorrect or incorrectly coded
– Check control unit identification
Protected by copyright. Copying automatic
for private or commercial
purposes,
in part
or in-whole,⇒
is not
gearbox
control
unit
page 13
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
J217with respect to the correctness of information in this document. Copyright by AUDI AG.
Explanatory notes
♦ The gear monitoring system in the gearbox control unit checks
the transmission ratios by comparing the engine output speed
and gearbox output speed. This fault is displayed if an incor‐
rect transmission ratio (implausibility) is detected.
♦ When testing the stall speed, the gearbox input speed in the
torque converter should be almost 0 rpm with the vehicle sta‐
tionary and a gear engaged. If this is not the case, this fault
will also be displayed to indicate possible damage to the
brakes (read measured value block 001 ⇒ page 54 ).
Fault code 17115 / P0731
Display on -VAS 505117115 / P0731
1st gear
Wrong transmission ratio
Possible cause of fault
♦ This fault may be displayed in
addition to fault code 17114 /
P0730
How to rectify fault
– Rectify fault as described for
fault code 17114 / P0730
♦ Brake of specified gear slipping/ – Assess wear by checking ATF
defective or solenoid valve for
for colour and contamination ⇒
this gear dirty/defective
Servicing automatic gearbox
01L, four-wheel drive; Rep. Gr.
38
Explanatory notes
♦ The gear monitoring system in the gearbox control unit checks
the transmission ratios by comparing the gearbox input and
output speeds for whichever gear is engaged.
20
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Fault code 17116 / P0732
Display on -VAS 505117116 / P0732
2nd gear
Wrong transmission ratio
Possible cause of fault
♦ This fault may be displayed in
addition to fault code 17114 /
P0730
How to rectify fault
– Rectify fault as described for
fault code 17114 / P0730
♦ Brake of specified gear slipping/ – Assess wear by checking ATF
defective or solenoid valve for
for colour and contamination ⇒
this gear dirty/defective
Servicing automatic gearbox
01L, four-wheel drive; Rep. Gr.
38
Explanatory notes
♦ The gear monitoring system in the gearbox control unit checks
the transmission ratios by comparing the gearbox input and
output speeds for whichever gear is engaged.
Fault code 17117 / P0733
Display on -VAS 505117117 / P0733
3rd gear
Wrong transmission ratio
Possible cause of fault
♦ This fault may be displayed in
addition to fault code 17114 /
P0730
How to rectify fault
– Rectify fault as described for
fault code 17114 / P0730
♦ Brake of specified gear slipping/ – Assess wear by checking ATF
defective or solenoid valve for
for colour and contamination ⇒
this gear dirty/defective
Servicing automatic gearbox
Protected by copyright. Copying for private or commercial purposes,
in part or in whole,
is not Rep. Gr.
01L, four-wheel
drive;
permitted unless authorised by AUDI AG. AUDI AG does not38
guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Explanatory notes
♦ The gear monitoring system in the gearbox control unit checks
the transmission ratios by comparing the gearbox input and
output speeds for whichever gear is engaged.
Fault code 17118 / P0734
Display on -VAS 505117118 / P0734
4th gear
Wrong transmission ratio
Possible cause of fault
♦ This fault may be displayed in
addition to fault code 17114 /
P0730
How to rectify fault
– Rectify fault as described for
fault code 17114 / P0730
♦ Brake of specified gear slipping/ – Assess wear by checking ATF
defective or solenoid valve for
for colour and contamination ⇒
this gear dirty/defective
Servicing automatic gearbox
01L, four-wheel drive; Rep. Gr.
38
– Check solenoid valves (read
measured value block
005 … 007 ⇒ page 59 )
Explanatory notes
♦ The gear monitoring system in the gearbox control unit checks
the transmission ratios by comparing the gearbox input and
output speeds for whichever gear is engaged.
4. Interrogating fault memory
21
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Fault code 17119 / P0735
Display on -VAS 505117119 / P0735
5th gear
Wrong transmission ratio
Possible cause of fault
♦ This fault may be displayed in
addition to fault code 17114 /
P0730
How to rectify fault
– Rectify fault as described for
fault code 17114 / P0730
♦ Brake of specified gear slipping/ – Assess wear by checking ATF
defective or solenoid valve for
for colour and contamination ⇒
this gear dirty/defective
Servicing automatic gearbox
01L, four-wheel drive; Rep. Gr.
38
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
– Check
solenoid
valves
(read
with respect to the correctness
of information
in this
document.
Copyright by AUDI AG.
measured value block
005 … 007 ⇒ page 59 )
Explanatory notes
♦ The gear monitoring system in the gearbox control unit checks
the transmission ratios by comparing the gearbox input and
output speeds for whichever gear is engaged.
Fault code 17125 / P0741
Display on -VAS 505117125 / P0741
Torque converter lock-up clutch
No power transmission
Possible cause of fault
How to rectify fault
♦ ATF level not OK
– Check ATF level ⇒ Automatic
gearbox 01L, four-wheel drive;
Rep. Gr. 37
♦ ATF dirty
– Assess wear by checking ATF
for colour and contamination ⇒
Servicing automatic gearbox
01L, four-wheel drive; Rep. Gr.
38
♦ Torque converter defective or – Check torque converter ⇒ Serv‐
incorrect torque converter fitted
icing automatic gearbox 01L,
four-wheel drive; Rep. Gr. 32
♦ Mechanical fault in automatic
gearbox pressure regulating
valve 4 -N218-
– Check torque converter identifi‐
cation ⇒ Automatic gearbox
01L, four-wheel drive; Rep. Gr.
00
– Read measured value block 007
⇒ page 61 and with clutch Tc
(closed) check permissible tor‐
que converter slip speed
♦ Problems with ATF supply to au‐
tomatic gearbox pressure regu‐ – Renew pressure regulating
lating valve 4 -N218valve or valve body ⇒ Automatic
gearbox 01L, four-wheel drive;
♦ Torque converter pressure
Rep. Gr. 38
valve defective
♦ Valve for torque converter clutch
defective
22
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
♦ Torque converter lock-up clutch – Dismantle complete gearbox
defective or worn
and clean all parts, renew ATF
pipes ⇒ Servicing automatic
gearbox 01L, four-wheel drive;
Rep. Gr. 37
– Dismantle and check all brakes
⇒ Servicing automatic gearbox
01L, four-wheel drive; Rep. Gr.
37
– Renew valve body ⇒ Automatic
gearbox 01L, four-wheel drive;
Rep. Gr. 38
– Renew torque converter ⇒ Au‐
tomatic gearbox 01L, four-wheel
drive; Rep. Gr. 32
Explanatory notes
♦ The ratio of gearbox input speed to engine speed with torque
converter lock-up clutch engaged is implausible.
Fault code 17135 / P0751
Display on -VAS
Possible
cause
of fault
Protected5051by copyright. Copying for private
or commercial
purposes,
in part or in whole, is not How to rectify fault
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
17135 / P0751
♦ Open
circuit
ordocument.
short toCopyright
earthbyinAUDI
– AG.Check wiring and connectors
with respect to the correctness
of information
in this
Switch valve 1 ⇒ Solenoid valve 1 wiring to component
according to current flow dia‐
N88gram. Also check for contact
Open circuit / short to earth
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Solenoid valve 1 -N88- defective – Perform final control diagnosis
⇒ page 42
– Read measured value block 005
⇒ page 59
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
10 ⇒ page 74
Explanatory notes
♦ The check for short to positive is made as soon as the ignition
is switched on. When the vehicle is moving all faults are de‐
tected.
Fault code 17136 / P0752
Display on -VAS 5051-
Possible cause of fault
17136 / P0752
♦ Short to positive in wiring to
Switch valve 1 ⇒ Solenoid valve 1 component
N88Short to positive
How to rectify fault
– Check wiring and connectors
according to current flow dia‐
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
4. Interrogating fault memory
23
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
♦ Solenoid valve 1 -N88- defective – Perform final control diagnosis
⇒ page 42
– Read measured value block 005
⇒ page 59
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
10 ⇒ page 74
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Explanatory notes
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permittedfor
unless
authorised
by AUDI AG.
AUDI AGas
does
not guarantee
accept any liability
♦ The check
short
to positive
is made
soon
as theorignition
with respect to the correctness of information in this document. Copyright by AUDI AG.
is switched
on. When the vehicle is moving all faults are de‐
tected.
Fault code 17137 / P0753
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
17137 / P0753
♦ Open circuit or short to earth or – Check wiring and connectors
Switch valve 1 ⇒ Solenoid valve 1 positive in wiring to component
according to current flow dia‐
N88gram. Also check for contact
Electrical fault in circuit
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Solenoid valve 1 -N88- defective – Perform final control diagnosis
⇒ page 42
– Read measured value block 005
⇒ page 59
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
10 ⇒ page 74
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Fault code 17140 / P0756
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
17140 / P0756
♦ Open circuit or short to earth in – Check wiring and connectors
Switch valve 2 ⇒ Solenoid valve 2 wiring to component
according to current flow dia‐
N89gram. Also check for contact
Open circuit / short to earth
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Solenoid valve 2 -N89- defective – Perform final control diagnosis
⇒ page 42
– Read measured value block 005
⇒ page 59
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
11 ⇒ page 74
24
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Explanatory notes
♦ The check for short to positive is made as soon as the ignition
is switched on. When the vehicle is moving all faults are de‐
tected.
Fault code 17141 / P0757
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
17141 / P0757
♦ Short to positive in wiring to
Switch valve 2 ⇒ Solenoid valve 2 component
N89Short to positive
– Check wiring and connectors
according to current flow dia‐
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Solenoid valve 2 -N89- defective – Perform final control diagnosis
⇒ page 42
– Read measured value block 005
⇒ page 59
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
11 ⇒ page 74
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Explanatory notes
♦ The check for short to positive is made as soon as the ignition
is switched on. When the vehicle is moving all faults are de‐
tected.
Fault code 17142 / P0758
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
17142 / P0758
♦ Open circuit or short to earth or – Check wiring and connectors
Switch valve 2 ⇒ Solenoid valve 2 positive in wiring to component
according to current flow dia‐
N89gram. Also check for contact
Electrical fault in circuit
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Solenoid valve 2 -N89- defective – Perform final control diagnosis
⇒ page 42
– Read measured value block 005
⇒ page 59
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
– Perform electrical check, test
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
stepsinNo.
9 ⇒ page
74 and
No.
with respect to the correctness of information
this document.
Copyright
by AUDI
AG.
11 ⇒ page 74
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
4. Interrogating fault memory
25
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Fault code 17145 / P0761
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
17145 / P0761
♦ Open circuit or short to earth in – Check wiring and connectors
Switch valve 3 ⇒ Solenoid valve 3 wiring to component
according to current flow dia‐
N90gram. Also check for contact
Open circuit / short to earth
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Solenoid valve 3 -N90- defective – Perform final control diagnosis
⇒ page 42
– Read measured value block 005
⇒ page 59
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
12 ⇒ page 75
Explanatory notes
♦ The check for short to positive is made as soon as the ignition
is switched on. When the vehicle is moving all faults are de‐
tected.
Fault code 17146 / P0762
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
17146 / P0762
♦ Short to positive in wiring to
Switch valve 3 ⇒ Solenoid valve 3 component
N90Short to positive
– Check wiring and connectors
according to current flow dia‐
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Solenoid valve 3 -N90- defective – Perform final control diagnosis
⇒ page 42
– Read measured value block 005
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
⇒ page 59
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
12 ⇒ page 75
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Explanatory notes
♦ The check for short to positive is made as soon as the ignition
is switched on. When the vehicle is moving all faults are de‐
tected.
26
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Fault code 17147 / P0763
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
17147 / P0763
♦ Open circuit or short to earth or – Check wiring and connectors
Switch valve 3 ⇒ Solenoid valve 3 positive in wiring to component
according to current flow dia‐
N90gram. Also check for contact
Electrical fault in circuit
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Solenoid valve 3 -N90- defective – Perform final control diagnosis
⇒ page 42
–
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Read measured value block 005
⇒ page 59
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
12 ⇒ page 75
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Fault code 17195 / P0811
Display on -VAS 505117195 / P0811
Severe clutch slip
Possible cause of fault
How to rectify fault
♦ ATF level not OK
– Check ATF level ⇒ Automatic
gearbox 01L, four-wheel drive;
Rep. Gr. 37
♦ ATF dirty
– Assess wear by checking ATF
for colour and contamination ⇒
Servicing automatic gearbox
♦ Brake slipping/defective or sol‐
01L, four-wheel drive; Rep. Gr.
enoid valve dirty/defective
38
– Check solenoid valves (read
measured value block
005 … 007 ⇒ page 59 )
♦ Gearbox input speed sender - – Rectify fault as described for
G182- defective
fault code 17100 / P0716
⇒ page 18
♦ Gearbox output speed sender - – Rectify fault as described for
G195- defective
fault code 17105 / P0721
⇒ page 19
♦ Incorrect or incorrectly coded
– Check control unit identification
⇒ page 13
automatic gearbox control unit J217-
Explanatory notes
♦ The gear monitoring system in the gearbox control unit checks
the transmission ratios by comparing the engine output speed
and gearbox output speed. This fault is displayed if an incor‐
rect transmission ratio (implausibility) is detected.
♦ When testing the stall speed, the gearbox input speed in the
torque converter should be almost 0 rpm with the vehicle sta‐
tionary and a gear engaged. If this is not the case, this fault
will also be displayed to indicate possible damage to the
brakes (read measured value block 001 ⇒ page 54 ).
4. Interrogating fault memory
27
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Fault code 17968 / P1560
Display on -VAS 5051-
Possible cause of fault
17968 / P1560
♦ Incorrect signal from engine
Maximum engine speed exceeded
speed sender -G28- to engine
control unit
♦ Engine speed sender -G28- de‐
fective
How to rectify fault
– Read measured value block 001
⇒ page 54
– Interrogate fault memory of en‐
gine control unit ⇒ Rep. Gr. 01
– Rectify fault of engine control
♦ Engine speed signal falsified
unit as described for fault code
due to incorrectly routed electri‐
16706 / P0322 ⇒ Rep. Gr. 01
cal wiring (e.g. because of ret‐
rofitted telephone)
– Check load signal for maximum
engine torque
♦ Engine on vehicle has been
– Check whether engine has been
tuned
tuned (unauthorised modifica‐
tions)
♦ Incorrect engine/gearbox com‐
bination
– Check transmission ratios ac‐
cording to engine and gearbox
codes
♦ Gearbox has changed down
– Read measured value block 005
when road speed is too high
⇒ page 59 and perform road
(e.g. due to mechanical fault in
test to determine which selector
valve body)
elements are defective or not
activated
Explanatory notes
♦ The fault will be detected if engine speed is higher than
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
7400 rpm (vehicles with petrol
engine) or 5500 rpm (vehicles
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with TDI engine).
with respect to the correctness of information in this document. Copyright by AUDI AG.
♦ The signal from engine speed sender -G28- is transmitted to
automatic gearbox control unit -J217- by engine control unit.
♦ The signals between the control units are exchanged via a
CAN bus ⇒ page 89 .
4.4
Fault tables: Fault code 18112 / P1704 up to fault code 18269 / P1861
Fault code 18112 / P1704
Display on -VAS 505118112 / P1704
Kick-down switch -F8Electrical fault in circuit
Possible cause of fault
How to rectify fault
♦ Wiring from component to en‐
gine control unit defective
– For kick-down function and
throttle valve value, read meas‐
ured value block 008
♦ Wiring from component to auto‐
⇒ page 62
matic gearbox control unit J217- defective
– Perform electrical check, test
step No. 7 ⇒ page 73
♦ Kick-down switch -F8- defective
♦ Open circuit or short to earth or – Read measured value block 125
⇒ page 65
positive in CAN bus wiring
– Check CAN bus wiring
⇒ page 89
Explanatory notes
♦ This fault may be erroneously displayed if brake pedal is
pressed and accelerator pedal is simultaneously floored as far
as kick-down (full throttle).
28
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Fault code 18141 / P1733
Display on -VAS 505118141 / P1733
tiptronic switch, down -F189Short to earth
Possible cause of fault
How to rectify fault
♦ Short to earth in tip-down switch – Read measured value block 011
or in wiring
⇒ page 63
♦ Short to earth in tiptronic buttons – Perform electrical check, test
on multi-function steering wheel
step No. 23 ⇒ page 80
or in wiring
Explanatory notes
♦ This fault is displayed if actuation of tip-down switch (-) is de‐
tected when selector lever is not in position “D”.
Fault code 18147 / P1739
Display on -VAS 505118147 / P1739
tiptronic switch, up -F189Short to earth
Possible cause of fault
How to rectify fault
♦ Short to earth in tip-up switch or – Read measured value block 011
in wiring
⇒ page 63
♦ Short to earth in tiptronic buttons – Perform electrical check, test
on multi-function steering wheel
step No. 23 ⇒ page 80
or in wiring
Explanatory notes
♦ This fault is displayed if actuation of tip-up switch (+) is detec‐
ted when selector lever is not in position “D”.
Fault code 18152 / P1744
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
18152 / P1744
♦ Short to earth in wiring
– Check wiring and connectors
tiptronic (recognition) switch -F189according to current flow dia‐
Short to earth
gram
♦ Short to earth in tiptronic switch – Read measured value block 011
⇒ page 63
-F189- (recognition)
♦ tiptronic switch -F189- defective – Perform electrical check, test
step No. 22 ⇒ page 79
♦ Automatic gearbox control unit - – Perform electrical check, test
J217- defective due to high volt‐
step No. 1 ⇒ page 70
age
– If no fault is detected, renew
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
page or3accept any liability
control
unit
permitted unless authorised by AUDI AG. AUDI
AG does
not ⇒
guarantee
Explanatory notes
with respect to the correctness of information in this document. Copyright by AUDI AG.
♦ This fault is displayed if the tiptronic switch -F189- (recogni‐
tion) has been activated with selector lever not in position “D”.
4. Interrogating fault memory
29
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Fault code 18153 / P1745
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
18153 / P1745
♦ Short circuit between positive – Read measured value block 003
Voltage supply for solenoid valves
and contacts 52 and 53 on au‐
⇒ page 56
Short to positive
tomatic gearbox control unit J217– Check wiring and connectors
according to current flow dia‐
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
– Check voltage supply to auto‐
matic gearbox control unit J217– Perform electrical check, test
step No. 9 ⇒ page 74
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Fault code 18155 / P1747
Display on -VAS 5051-
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
Possible
cause of fault
How to rectify fault
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
18155 / P1747
♦ Open circuit
in wiring or short
– Read measured value block 003
Voltage supply for solenoid valves
circuit between earth and con‐
⇒ page 56
Open circuit / short to earth
tacts 52 and 53 on automatic
gearbox control unit -J217– Check wiring and connectors
according to current flow dia‐
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
– Check voltage supply to auto‐
matic gearbox control unit J217– Perform electrical check, test
step No. 9 ⇒ page 74
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Fault code 18156 / P1748
Display on -VAS 505118156 / P1748
Control unit defective
Possible cause of fault
How to rectify fault
♦ Automatic gearbox control unit - – Check gearbox for mechanical
J217- defective
and hydraulic faults
– Check electrical/electronic com‐
ponents and wiring
– Check electronics box of gear‐
box control unit for moisture and
seal if necessary.
– Renew control unit ⇒ page 3
30
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Fault code 18157 / P1749 - Fault description for gearbox control
units with all data levels except “D26”, “D29” and “D32”. Check
control unit identification ⇒ page 13
Display on -VAS 505118157 / P1749
Automatic gearbox control unit
Incorrect coding
Possible cause of fault
♦ Incorrect coding detected by
gearbox control unit
How to rectify fault
– Check gearbox control unit iden‐
tification ⇒ page 13
– Read measured value block 013
⇒ page 64
♦ Engine control unit incorrectly – Check engine control unit iden‐
coded or incorrect engine con‐
tification ⇒ Rep. Gr. 01
trol unit installed
♦ Engine on vehicle has been
tuned
– Check whether engine has been
tuned (unauthorised modifica‐
tions)
Caution
The fault codes “18157 / P1748” and “18265 / P1857” were
interchanged when producing the software for gearbox control
units with data levels “D26”, “D29” and “D32”. Fault description
for gearbox control units with data levels “D26”, “D29” and
“D32” ⇒ page 31 .
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Fault code 18157 / P1749 - Fault description only for gearbox
control units with data levels “D26”, “D29” and “D32”. Check con‐
trol unit identification ⇒ page 13
Display on -VAS 505118157 / P1749
Automatic gearbox control unit
Incorrect coding
Possible cause of fault
How to rectify fault
♦ Fault in “signal for actual engine – Read out fault memory of engine
torque” detected by engine con‐
control unit and rectify fault ⇒
trol unit
Rep. Gr. 01
18157 / P1749
♦ Engine control unit incorrectly – Check engine control unit iden‐
Automatic gearbox control unit
coded or incorrect engine con‐
tification ⇒ Rep. Gr. 01
Fault message from engine control
trol unit installed
unit
♦ Gearbox control unit incorrectly – Check gearbox control unit iden‐
coded or incorrect gearbox con‐
tification ⇒ page 13
trol unit installed
♦ Engine on vehicle has been
tuned
– Check whether engine has been
tuned (unauthorised modifica‐
tions)
Caution
The fault codes 18157 / P1748 and 18265 / P1857 were inter‐
changed when producing the software for gearbox control units
with data levels “D26”, “D29” and “D32”. Fault description for
gearbox control units with all data levels except “D26”, “D29”
and “D32” ⇒ page 31 .
4. Interrogating fault memory
31
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Explanatory notes
♦ The fault is transmitted to automatic gearbox control unit J217- by engine control unit.
♦ The signals between the control units are exchanged via a
CAN bus ⇒ page 89 .
Fault code 18158 / P1750
Display on -VAS 505118158 / P1750
Voltage supply
Voltage too low
Possible cause of fault
How to rectify fault
♦ Fault detected by battery moni‐ – Read measured value block 003
toring system
⇒ page 56
♦ Battery voltage less than 7 V
♦ Open circuit or short to earth in – Check wiring and connectors
wiring
according to current flow dia‐
gram
– Perform electrical check, test
steps No. 1 ⇒ page 70 and No.
6 ⇒ page 73
Protected by copyright.
Copying
for
private
or
commercial
purposes,
in
part
or
in
whole, is voltage
not
♦ Fuse defective
– Check
supply to auto‐
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
matic
gearbox
control unit with respect to the correctness of information in this document. Copyright by AUDI AG.
J217♦ Open circuit/short circuit to per‐ – Renew control unit ⇒ page 3
manent positive in gearbox con‐
trol unit
Explanatory notes
♦ The battery monitoring system distinguishes between four dif‐
ferent ranges (U = battery voltage):
1.
U = less than 7 V: Gearbox switches to emergency running
mode ⇒ page 2
2.
U = 7…9 Volts: Gear which is currently selected will be
maintained for about 2.5 seconds and if U (= battery voltage)
still remains within this range after this period of time, gear‐
box switches to emergency running mode ⇒ page 2
3.
U = 9…16 Volts: Voltage OK
4.
U = higher than 16 V: Gearbox switches to emergency run‐
ning mode ⇒ page 2
♦ If the voltage supply from the vehicle's electrical system (ter‐
minal 30) fails, certain application values will be lost, i.e. the
gearbox control unit must re-learn them the next time the en‐
gine is started. During this “learning process” the gear change
quality may not be as smooth as usual
32
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Fault code 18159 / P1751
Display on -VAS 505118159 / P1751
Voltage supply
Voltage too high
Possible cause of fault
How to rectify fault
♦ Battery voltage higher than 16 V – Read measured value block 003
⇒ page 56
♦ Alternator or voltage regulator
defective
– Check wiring and connectors
according to current flow dia‐
gram
– Check voltage supply to control
unit
– Perform electrical check, test
steps No. 1 ⇒ page 70 and No.
6 ⇒ page 73
♦ Second battery connected in
series by mistake (e.g. for jumpstarting)
– Check alternator or voltage reg‐
ulator ⇒ Electrical System; Rep.
Gr. 27
– Erase fault memory
Explanatory notes
♦ The battery monitoring system distinguishes between four dif‐
ferent ranges (U = battery voltage):
1.
U = less than 7 V: Gearbox switches to emergency
Protectedrunning
by copyright. Copying for private or commercial purposes, in part or in whole, is not
mode ⇒ page 2
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
2.
U = 7…9 Volts: Gear which is currently selected will be
maintained for about 2.5 seconds and if U (= battery voltage)
still remains within this range after this period of time, gear‐
box switches to emergency running mode ⇒ page 2
3.
U = 9…16 Volts: Voltage OK
4.
U = higher than 16 V: Gearbox switches to emergency run‐
ning mode ⇒ page 2
with respect to the correctness of information in this document. Copyright by AUDI AG.
Fault code 18169 / P1761
Display on -VAS 505118169 / P1761
Selector lever lock ⇒ solenoid N110Short to earth
Possible cause of fault
How to rectify fault
♦ No voltage supply for selector
lever lock solenoid -N110-
– Read measured value block 003
⇒ page 56
♦ Fuse defective
♦ Short to earth
– Check fuses, wiring and con‐
nectors according to current
flow diagram
♦ Selector lever lock solenoid N110- defective
– Perform final control diagnosis
⇒ page 42
– Perform electrical check, test
steps No. 2 ⇒ page 71 and No.
18 ⇒ page 78
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Explanatory notes
♦ The selector lever lock solenoid -N110- cannot be deactivated,
i.e. the selector lever cannot be moved out of positions “P” or
“D” even though the brake pedal is pressed.
4. Interrogating fault memory
33
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Fault code 18170 / P1762
Display on -VAS 505118170 / P1762
Selector lever lock ⇒ solenoid N110Short to positive
Possible cause of fault
How to rectify fault
♦ Short to positive in wiring to
component
– Read measured value block 003
⇒ page 56
♦ Selector lever lock solenoid N110- defective
– Check wiring and connectors
according to current flow dia‐
gram
– Perform final control diagnosis
⇒ page 42
– Perform electrical check, test
steps No. 2 ⇒ page 71 and No.
18 ⇒ page 78
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Explanatory notes
♦ The selector lever lock solenoid -N110- cannot be activated
with the selector lever in positions “P” or “N”, i.e. the selector
lever can be moved out of positions “P” or “N” without pressing
the brake pedal.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Fault code 18171 / P1763
Display on -VAS 505118171 / P1763
Selector lever lock ⇒ solenoid N110Open circuit
Possible cause of fault
How to rectify fault
♦ Open circuit in wiring to compo‐ – Read measured value block 003
nent
⇒ page 56
♦ Selector lever lock solenoid N110- defective
– Check wiring and connectors
according to current flow dia‐
gram
– Perform final control diagnosis
⇒ page 42
– Perform electrical check, test
steps No. 2 ⇒ page 71 and No.
18 ⇒ page 78
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Explanatory notes
♦ The selector lever lock solenoid -N110- cannot be activated
with the selector lever in positions “P” or “N”, i.e. the selector
lever can be moved out of positions “P” or “N” without pressing
the brake pedal.
Fault code 18222 / P1814
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
18222 / P1814
♦ Open circuit or short to earth in – Check wiring and connectors
Pressure regulating valve 1 -N215wiring to component
according to current flow dia‐
Open circuit / short to earth
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
34
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
♦ Automatic gearbox pressure
– Perform final control diagnosis
regulating valve 1 -N215- defec‐
⇒ page 42
tive
– Read measured value block 006
⇒ page 60
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
13 ⇒ page 76
Fault code 18223 / P1815
Display on -VAS 5051-
Possible permitted
cause unless
of fault
How
to rectify
faultor accept any liability
authorised by AUDI AG. AUDI
AG does
not guarantee
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
18223 / P1815
♦ Short to positive in wiring to
Pressure regulating valve 1 -N215component
Short to positive
– Check wiring and connectors
according to current flow dia‐
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Automatic gearbox pressure
– Perform final control diagnosis
regulating valve 1 -N215- defec‐
⇒ page 42
tive
– Read measured value block 006
⇒ page 60
with respect to the correctness of information in this document. Copyright by AUDI AG.
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
13 ⇒ page 76
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Fault code 18227 / P1819
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
18227 / P1819
♦ Open circuit or short to earth in – Check wiring and connectors
Pressure regulating valve 2 -N216wiring to component
according to current flow dia‐
Open circuit / short to earth
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Automatic gearbox pressure
– Perform final control diagnosis
regulating valve 2 -N216- defec‐
⇒ page 42
tive
– Read measured value block 006
⇒ page 60
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
14 ⇒ page 76
4. Interrogating fault memory
35
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Fault code 18228 / P1820
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
18228 / P1820
♦ Short to positive in wiring to
Pressure regulating valve 2 -N216component
Short to positive
– Check wiring and connectors
according to current flow dia‐
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Automatic gearbox pressure
– Perform final control diagnosis
regulating valve 2 -N216- defec‐
⇒ page 42
tive
– Read measured value block 006
⇒ page 60
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
14 ⇒ page 76
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Fault code 18232 / P1824
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
18232 / P1824
♦ Open circuit or short to earth in – Check wiring and connectors
Pressure regulating valve 3 -N217wiring to component
according to current flow dia‐
Open circuit / short to earth
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Automatic gearbox pressure
– Perform final control diagnosis
regulating valve 3 -N217- defec‐
⇒ page 42
tive
– Read measured value block 006
page
60
Protected by copyright. Copying for ⇒
private
or commercial
purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness
information in
this document.
Copyright
by AUDI AG.
– ofPerform
electrical
check,
test
steps No. 9 ⇒ page 74 and No.
15 ⇒ page 77
Fault code 18233 / P1825
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
18233 / P1825
♦ Short to positive in wiring to
Pressure regulating valve 3 -N217component
Short to positive
– Check wiring and connectors
according to current flow dia‐
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Automatic gearbox pressure
– Perform final control diagnosis
regulating valve 3 -N217- defec‐
⇒ page 42
tive
– Read measured value block 006
⇒ page 60
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
15 ⇒ page 77
36
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Fault code 18237 / P1829
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
18237 / P1829
♦ Open circuit or short to earth in – Check wiring and connectors
Pressure regulating valve 4 -N218wiring to component
according to current flow dia‐
Open circuit / short to earth
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Automatic gearbox pressure
– Perform final control diagnosis
regulating valve 4 -N218- defec‐
⇒ page 42
tive
– Read measured value block 007
⇒ page 61
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
16 ⇒ page 77
Fault code 18238 / P1830
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
18238 / P1830
♦ Short to positive in wiring to
Pressure regulating valve 4 -N218component
Short to positive
– Check wiring and connectors
according to current flow dia‐
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Automatic gearbox pressure
– Perform final control diagnosis
regulating valve 4 -N218- defec‐
⇒ page 42
tive
– Read measured value block 007
⇒ page 61
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
16 ⇒ page 77
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Fault code 18242 / P1834
Display on -VAS 5051-
Possible
cause of fault
How to rectify fault
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
18242 / P1834
♦ Open circuit
or short to earth in – Check wiring and connectors
with respect to the correctness of information in this document. Copyright by AUDI AG.
Pressure regulating valve 5 -N233wiring to component
according to current flow dia‐
Open circuit / short to earth
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
4. Interrogating fault memory
37
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
♦ Automatic gearbox pressure
– Perform final control diagnosis
regulating valve 5 -N233- defec‐
⇒ page 42
tive
– Read measured value block 006
⇒ page 60
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
17 ⇒ page 78
Fault code 18243 / P1835
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
18243 / P1835
♦ Short to positive in wiring to
Pressure regulating valve 5 -N233component
Short to positive
– Check wiring and connectors
according to current flow dia‐
gram. Also check for contact
corrosion or moisture, especial‐
ly on the 16-pin connector on
gearbox between valve body
and wiring harness
♦ Automatic gearbox pressure
– Perform final control diagnosis
regulating valve 5 -N233- defec‐
⇒ page 42
tive
– Read measured value block 006
⇒ page 60
– Perform electrical check, test
steps No. 9 ⇒ page 74 and No.
17 ⇒ page 78
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Fault code 18249 / P1841
Display on -VAS 505118249 / P1841
Engine/gearbox control unit
Versions are not compatible
Possible cause of fault
How to rectify fault
♦ Incorrect or defective automatic – Check control unit identification
gearbox control unit -J217⇒ page 13
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
– Read measured value block 013
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
⇒ page
64by AUDI AG.
with respect to the correctness of information in this document.
Copyright
♦ Incorrect or defective engine
control unit
– Check engine control unit iden‐
tification; interrogate fault mem‐
ory and rectify faults ⇒ Rep. Gr.
01
Fault code 18258 / P1850
Display on -VAS 505118258 / P1850
Drive train data bus
No message from engine control
unit
Possible cause of fault
♦ Open circuit or short to earth or – Read measured value block 125
⇒ page 65
positive in CAN bus wiring
♦ Incorrect or defective engine
control unit
38
How to rectify fault
Rep. Gr.01 - Self-diagnosis, electrical checks
– Check CAN bus wiring
⇒ page 89
– Check engine control unit iden‐
tification; interrogate fault mem‐
ory and rectify faults ⇒ Rep. Gr.
01
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Explanatory notes
♦ Data bus is also referred to as CAN bus.
♦ The signals between the control units are exchanged via a
CAN bus ⇒ page 89 .
Fault code 18259 / P1851
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
18259 / P1851
♦ Open circuit or short to earth or – Read measured value block 125
Drive train data bus
positive in CAN bus wiring
⇒ page 65
No message from ABS control unit
– Check CAN bus wiring
⇒ page 89
♦ Incorrect or defective ABS with – Check control unit identification;
EDL control unit -J104interrogate fault memory and
rectify fault ⇒ Running gear,
self-diagnosis for ABS, ESP;
Rep. Gr. 01
Explanatory notes
♦ Data bus is also referred to as CAN bus.
♦ The signals between the control units are exchanged via a
CAN bus ⇒ page 89 .
Fault code 18262 / P1854
Display on -VAS 505118262 / P1854
Drive train data bus
defective
Possible cause of fault
How to rectify fault
♦ Automatic gearbox control unit - – Renew control unit ⇒ page 3
J217- defective
Explanatory notes
♦ Data bus is also referred to as CAN bus.
♦ The signals between the control units are exchanged via a
CAN bus ⇒ page 89 .
Fault code 18263 / P1855
Display on -VAS 505118263 / P1855
Drive train data bus
Software version monitoring
Possible cause of fault
How to rectify fault
♦ Open circuit or short to earth or – Read measured value block 125
positive in CAN bus wiring
⇒ page 65
♦ Incorrect automatic gearbox
control unit -J217-
– Check CAN bus wiring
⇒ page 89
– Check control unit identification
⇒ page 13
Explanatory notes
♦ Data bus is also referred to as CAN bus.
♦ The signals between the control units are exchanged via a
89by. copyright. Copying for private or commercial purposes, in part or in whole, is not
CAN bus ⇒ page
Protected
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
4. Interrogating fault memory
39
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Fault code 18264 / P1856
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
18264 / P1856
♦ Incorrect signal from throttle
– Read measured value block 008
Throttle valve potentiometer -G69valve potentiometer to engine
⇒ page 62 and 009
Fault message from engine control
control unit
⇒ page 63
unit
♦ Wiring between throttle valve
– Interrogate fault memory of en‐
potentiometer and engine con‐
gine control unit and rectify
trol unit defective
faults ⇒ Rep. Gr. 01
♦ Incorrect or defective engine
control unit
– Check engine control unit iden‐
tification; interrogate fault mem‐
ory and rectify faults ⇒ Rep. Gr.
01
Explanatory notes
♦ The signal from throttle valve potentiometer -G69- is transmit‐
ted to automatic gearbox control unit -J217- by engine control
unit.
♦ The signals between the control units are exchanged via a
CAN bus ⇒ page 89 .
Fault code 18265 / P1857 - Fault description for gearbox control
units with all data levels except “D26”, “D29” and “D32”. Check
control unit identification ⇒ page 13
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
18265 / P1857
♦ Fault detected by engine control – Read measured value block 009
Load signal
unit in “actual engine torque”
⇒ page 63
Fault message from engine control
unit
– Interrogate fault memory of en‐
gine control unit and rectify
faults ⇒ Rep. Gr. 01
♦ Incorrect or defective engine
– Check engine control unit iden‐
control unit
tification; interrogate fault mem‐
ory and rectify faults ⇒ Rep. Gr.
♦ Mechanical fault in engine
01
♦ Engine on vehicle has been
tuned
Caution
The fault codes 18157 / P1748 and 18265 / P1857 were inter‐
changed when producing the software for gearbox control units
with data levels “D26”, “D29” and “D32”. Fault description for
gearbox control units with data levels “D26”, “D29” and “D32”
⇒ page 41 .
Explanatory notes
♦ The signal for “actual engine torque” is transmitted to auto‐
matic gearbox control unit -J217- by engine control unit.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
unless
authorisedthe
by AUDI
AG. AUDI
AG does
guarantee or accept
any liability
♦ Thepermitted
signals
between
control
units
arenot
exchanged
via a
to the correctness of information in this document. Copyright by AUDI AG.
⇒ page
89 .
CAN with
busrespect
40
Rep. Gr.01 - Self-diagnosis, electrical checks
– Check whether engine has been
tuned (unauthorised modifica‐
tions)
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Fault code 18265 / P1857 - Fault description only for gearbox
control units with data levels “D26”, “D29” and “D32”. Check con‐
trol unit identification ⇒ page 13
Display on -VAS 5051-
Possible cause of fault
18265 / P1857
♦ Incorrectly coded or incorrect
Load signal
engine control unit
Fault message from engine control
unit
How to rectify fault
– Check engine control unit iden‐
tification ⇒ Rep. Gr. 01
Caution
The fault codes 18157 / P1748 and 18265 / P1857 were inter‐
changed when producing the software for gearbox control units
with data levels “D26”, “D29” and “D32”. Fault description for
all other data levels ⇒ page 40 .
Explanatory notes
♦ The signal for “actual engine torque” is transmitted to auto‐
matic gearbox control unit -J217- by engine control unit.
♦ The signals between the control units are exchanged via a
CAN bus ⇒ page 89 .
Fault code 18269 / P1861
Display on -VAS 5051-
Possible cause of fault
How to rectify fault
18269 / P1861
♦ Open circuit in wiring or short
– Check wiring and connectors
Accelerator position sender -G79between accelerator position
according to current flow dia‐
Fault message from engine control
sender and engine control unit
gram. Also check for contact
unit
corrosion or moisture
♦ Accelerator position sender de‐ – Interrogate fault memory of en‐
fective
gine control unit and rectify
faults ⇒ Rep. Gr. 01
Explanatory notes
♦ The signal from accelerator position sender -G79- is transmit‐
ted to automatic gearbox control unit -J217- by engine control
unit.
♦ The signals between the control units are exchanged via a
CAN bus ⇒ page 89 .
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
4. Interrogating fault memory
41
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
5
Final control diagnosis
Note
♦ The final control diagnosis can only be performed with the ig‐
nition switched on, the selector lever in position “P”, the engine
not running and the vehicle stationary.
♦ If the engine is started the final control diagnosis will be ter‐
minated.
♦ During the final control diagnosis the operation of solenoid
valves -N88- , -N89- and -N90- as well as the selector lever
lock solenoid -N110- are tested acoustically. Since the switch‐
ing action (clicking) of the control elements is very quiet, any
background noise should be avoided when carrying out this
part of the test.
♦ The pressure regulating valves -N215- , -N216- , -N217- , -
N218- and -N233- are activated during final control diagnosis.
It is not possible to check operation of each component di‐
rectly, however, any electrical faults that may occur during the
activation process will be stored in the fault memory.
♦ During the final control diagnosis the control elements are ac‐
tivated until the → button is touched.
♦ When the ignition has been switched on the final control diag‐
nosis can only be performed once. To perform a second final
control diagnosis the ignition must be switched off and then on
again.
Activation sequence
1.
Solenoid valve 1 -N88-
2.
Solenoid valve 2 -N89-
3.
Solenoid valve 3 -N90-
4.
Selector lever lock solenoid -N110-
5.
Automatic gearbox pressure regulating valve 1 -N215-
6.
Automatic gearbox pressure regulating valve 2 -N216-
7.
Automatic gearbox pressure regulating valve 3 -N217-
8.
Automatic gearbox pressure regulating valve 4 -N218-
9.
Automatic gearbox pressure regulating valve 5 -N233-
10.
Voltage supply for solenoid valves
Procedure
– Connect vehicle diagnostic, testing and information system VAS 5051- ⇒ page 11 and select vehicle system “02 - Gearbox
electronics”. When doing this the ignition must be switched on.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
42
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display on -VAS 5051- :
– From list -1- select diagnostic function “03 - Final control di‐
agnosis”.
Display on -VAS 5051- :
Protected
by copyright. Copying for private or commercial purposes, in part or in whole, is not
A - 1st control element
in test
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
1 - Switch valve 1 ⇒ Solenoid
valve 1 -N88-
•
The valve is activated in intervals (and should click).
Note
♦ If valve is not activated, read “measured value block 005”
⇒ page 59 .
♦ Any electrical faults will be stored in the fault memory, fault
tables for solenoid valve 1 -N88- ⇒ page 23 .
– Final control diagnosis is advanced to the next control element
by touching → button.
Display on -VAS 5051- :
A - 2nd control element in test
2 - Switch valve 2 ⇒ Solenoid valve 2 -N89•
The valve is activated in intervals (and should click).
Note
♦ If valve is not activated, read “measured value block 005”
⇒ page 59 .
♦ Any electrical faults will be stored in the fault memory, fault
tables for solenoid valve 2 -N89- ⇒ page 24 .
– Final control diagnosis is advanced to the next control element
by touching → button.
5. Final control diagnosis
43
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display on -VAS 5051- :
A - 3rd control element in test
3 - Switch valve 3 ⇒ Solenoid valve 3 -N90•
The valve is activated in intervals (and should click).
Note
♦ If valve is not activated, read “measured value block 005”
⇒ page 59 .
♦ Any electrical faults will be stored in the fault memory, fault
tables for solenoid valve 3 -N90- ⇒ page 26 .
– Final control diagnosis is advanced to the next control element
by touching → button.
Display on -VAS 5051- :
A - 4th control element in test
4 - Selector lever lock ⇒ solenoid -N110•
The solenoid is activated in intervals (and should click).
Note
♦ If solenoid is not activated, read “measured value block 003 ”
⇒ page 56 .
♦ Any electrical faults will be stored in the fault memory, fault
tables for selector lever lock solenoid -N110- ⇒ page 33 .
– Final control diagnosis is advanced to the next control element
by touching → button.
Display on -VAS 5051- :
A - 5th control element in test
5 - Pressure regulating valve 1 -N215•
The valve
is activated.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Note
Any electrical faults will be stored in the fault memory, fault tables
for automatic gearbox pressure regulating valve 1 -N215⇒ page 34 .
– Final control diagnosis is advanced to the next control element
by touching → button.
44
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display on -VAS 5051- :
A - 6th control element in test
6 - Pressure regulating valve 2 -N216•
The valve is activated.
Note
Any electrical faults will be stored in the fault memory, fault tables
for automatic gearbox pressure regulating valve 2 -N216⇒ page 35 .
– Final control diagnosis is advanced to the next control element
by touching → button.
Display on -VAS 5051- :
A - 7th control element in test
7 - Pressure regulating valve 3 -N217•
The valve is activated.
Note
Any electrical faults will be stored in the fault memory, fault tables
for automatic gearbox pressure regulating valve 3 -N217⇒ page 36 .
– Final control diagnosis is advanced to the next control element
by touching → button.
Display on -VAS 5051- :
A - 8th control element in test
8 - Pressure regulating valve 4 -N218•
The valve is activated.
Note
Any electrical faults will be stored in the fault memory, fault tables
for automatic gearbox pressure regulating valve 4 -N218⇒ page 37 .
– Final control diagnosis is advanced to the next control element
by touching → button.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
5. Final control diagnosis
45
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display on -VAS 5051- :
A - 9th control element in test
9 - Pressure regulating valve 5 -N233•
The valve is activated.
Note
Any electrical faults will be stored in the fault memory, fault tables
for automatic gearbox pressure regulating valve 5 -N233⇒ page 37 .
– Final control diagnosis is advanced to the next control element
by touching → button.
Display on -VAS 5051- :
A - 10th control element in test
10 - Voltage supply for solenoid valves
•
In position “P” the solenoid valves are activated in intervals
(and should click).
Note
Ignore control element.
– Touch → button.
Display on -VAS 5051- :
A - Control element test is completed
– Exit from function “03 - Final control diagnosis” by touching
← button.
Note
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
To perform a second final control diagnosis the ignition must be
switched off and then on again and function “03 - Final control
diagnosis” selected once again.
46
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
6
Erasing fault memory
Note
If fault memory cannot be erased, interrogate fault memory once
again and rectify any faults.
Requirements
•
Fault memory interrogated ⇒ page 14 .
•
All faults rectified.
After interrogating fault memory:
Display on -VAS 5051- :
– From list -1- select function “05 - Erase fault memory”.
Display on -VAS 5051- :
1 - No display (before erasing memory) or
- Fault memory erased
Note
If the foIlowing message appears in display zone -1-: “Fault mem‐
ory has not yet been interrogated”, the procedure was not per‐
formed properly. The fault memory must first be interrogated
before it can be erased.
2 - Note: Is this function to be carried out? Note: Data will be
erased.
– Touch OK button in display -2-.
– Exit function “05 - Erase fault memory” by touchingpermitted
← button.
unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
with respect to the correctness of information in this document. Copyright by AUDI AG.
– After interrogating and erasing fault memory, road-test vehicle
and interrogate fault memory once again.
Display on -VAS 5051- :
When the fault memory is interrogated the following display
should appear:
1 - “0 fault detected”
6. Erasing fault memory
47
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
7
Ending output
Display on -VAS 5051- :
– From list -1- select function “06 - End output”.
Display on -VAS 5051- :
– When this display is indicated, switch off ignition and unplug
diagnostic connector.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
48
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
8
Resetting adaption values for gear‐
box control unit (basic setting)
The adaption values in the gearbox control unit should be reset
after repairing valve body (e.g renewing solenoid valves), renew‐
ing valve body, torque converter or gearbox. This enables the
gearbox control unit to relearn these adaption values under nor‐
mal operating conditions more quickly when it is put back into
operation.
The adaption values in the gearbox control unit will be reset:
♦ If multi-pin connector at gearbox control unit is disconnected
for at least 15 minutes ⇒ page 10 .
♦ If battery is disconnected for at least 15 minutes ⇒ Electrical
system; Rep. Gr. 27 .
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
8. Resetting adaption values for gearbox control unit (basic setting)
49
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
9
Coding control unit
The automatic gearbox control unit -J217- can only be coded if
the following requirements are met:
•
Vehicle stationary, ignition switched on, engine not running.
•
Selector lever in position “P” or “N”.
•
Accelerator pedal in idling position.
– Connect vehicle diagnostic, testing and information system VAS 5051- ⇒ page 11 and select vehicle system “02 - Gearbox
electronics”. When doing this the ignition must be switched on.
Display on -VAS 5051- :
– From list -1- select function “07 - Code control unit”.
Display on -VAS 5051- :
1 - Enter code word
– Use keypad -2- to enter 5-digit coding according to coding ta‐
ble.
Coding table for USA/Canada vehicles
Coding
A8 (up to model year 2001)
S8 (up to model year 2001)
A8 (from model year 2002 onwards)
S8 (from model year 2002 onwards)
00002
00102
01002
01102
Coding table for rest of the world vehicles
Coding
A8
00001
00101
1)
S8
A8: Tip-up/tip down with selector lever in
01001
position “D”/“S” disabled on multi-function
steering wheel 2)
S8: Tip-up/tip down with selector lever in
01101
position “D”/“S” disabled on multi-function
steering wheel 2)
• 1) Some S8 models are coded to “00001” because of a new
control unit version. If it is not possible to change coding to
“00101”, do not renew control unit. Coding “00001” is correct
for these control units.
•
2)
On vehicles with multi-function steering wheelProtected
it is possi‐
by copyright. Copying for private or commercial purposes, in part or in whole, is not
ble to shift up or shift down with selector lever in position
“D” authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
permitted unless
or “S” by touching button + or - . This function canwith
berespect
disa‐to the correctness of information in this document. Copyright by AUDI AG.
bled with coding “01001” or on S8 models “01101”.
– Confirm entry by touching Q button.
50
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display on -VAS 5051- :
1 - Coding is being performed
– Wait until next screen display appears.
1-
Vehicle system coding completed
2-
Control unit identification with new coding (previous coding
in brackets)
Note
♦ If the control unit is coded with a coding which is invalid for this
copyright.
Copying
for private or commercial purposes, in part or in whole, is not
vehicle model, the following Protected
displaybywill
appear
“Coding
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
XXXXX not accepted”.
with respect to the correctness of information in this document. Copyright by AUDI AG.
♦ If an incorrect code number is entered the control unit retains
the old coding.
♦ If the control unit is coded under conditions not permitting cod‐
ing (e.g. when driving), the following display will appear:
“Function unknown or cannot be performed at the moment”.
♦ Once the coding operation has been completed the fault mem‐
ory in the control unit is automatically erased.
– Exit from function “07 - Code control unit” by touching ← but‐
ton.
9. Coding control unit
51
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
10
Measured value block
10.1
Reading measured value block
– Connect vehicle diagnostic, testing and information system VAS 5051- ⇒ page 11 and select vehicle system “02 - Gearbox
electronics”. When doing this the ignition must be switched on
or the engine must be running at idling speed.
Display on -VAS 5051- :
– From list -1-, select diagnostic function “08 - Read measured
value block”.
Display on -VAS 5051- :
1 - Enter display group (max. input value = 255).
– Use keypad -2- to enter required “display group number”
⇒ page 52 and confirm entry by touching Q button.
Display on -VAS 5051- :
1-
Display zones 1 ... 4. If a display zone is vacant, the display
in this line remains blank.
2-
The selected display group is indicated in this field.
3-
Touch these buttons to switch to other display groups.
4-
Touch these buttons to change to a different function (e.g.
from “Read
valueforblock”
“Basicpurposes,
setting”
and
Protectedmeasured
by copyright. Copying
private orto
commercial
in part
or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
vice versa).
with respect to the correctness of information in this document. Copyright by AUDI AG.
– Exit from diagnostic function “08 - Read measured value
block” by touching ← button.
10.2
Overview of selectable display groups
Display group Display zone Designation
001
52
1
2
3
4
Engine speed
Gearbox input speed
Gearbox output speed
Gear engaged in gearbox
Rep. Gr.01 - Self-diagnosis, electrical checks
Further details
⇒ page 54
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display group Display zone Designation
002
1
2
3
4
1
2
3
4
1
2
3
4
Further details
Presently used shift program
Throttle valve value or accelerator pedal position
Gearbox output speed
Gear engaged in gearbox
003
Brake light switch -FP/N lock
Speed
Voltage supply
004
ATF temperature
Selector lever position
Multi-function switch -F125- position
Depending on version: Torque reduction or
On-board diagnosis information
005
1
Solenoid valve 1 -N882
Solenoid valve 2 -N893
Solenoid valve 3 -N904
Gear engaged in gearbox
006
1
Specified current of automatic gearbox pressure regulating
valve 1 -N2152
Specified current of automatic gearbox pressure regulating
valve 2 -N2163
Specified current of automatic gearbox pressure regulating
valve 3 -N2174
Specified current of automatic gearbox pressure regulating
valve 5 -N233007
1
ATF temperature
2
Specified current of automatic gearbox pressure regulating
valve 4 -N2183
Torque converter lock-up clutch
4
Torque converter slip speed
008
1
Kick-down switch
2
Throttle valve value or accelerator pedal position
3
Overrun/acceleration
4
Vacant
009
1
Engine torque (actual)
2
Engine speed
3
Throttle valve value or accelerator pedal position
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI
AG does not
guarantee
or accept any liability
4 AG. AUDI
Gearbox
input
torque
with respect to the correctness of information in this document. Copyright by AUDI AG.
010
1
Torque increase in torque converter
2
Engine speed
3
Gear engaged in gearbox
4
Actual vehicle acceleration rate
011
1
Selector lever position
2
tiptronic switch -F189- (recognition)
3
tiptronic switch -F189- (shift up/shift down)
4
Vacant
012
1
Type of driving, under load
2
Driving dynamics index
3
Motion resistance index
4
Driving style factor
⇒ page 55
⇒ page 56
⇒ page 56
⇒ page 59
⇒ page 60
⇒ page 61
⇒ page 62
⇒ page 64
⇒ page 63
⇒ page 63
⇒ page 64
10. Measured value block
53
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display group Display zone Designation
1
2
3
4
1
2
3
4
013 1)
125 1)
•
1)
10.3
CAN bus calibration torque
CAN bus engine code
CAN bus gearbox code
CAN bus software version code
CAN bus for engine control unit
CAN bus for ABS with EDL control unit -J104CAN bus for steering angle sender -G85Vacant
Further details
⇒ page 64
⇒ page 65
Display in display groups 013 and 125 according to vehicle version.
Test table
Display group 001
Display zones
1
… rpm
Explanatory notes
0 ... 8200 rpm
Engine speed when vehicle is driven. A second mechanic is required for reading
out the values ⇒ “3.1 Safety precautions”, page 11
If no value or an implausible value is displayed:
– Rectify fault as described for fault code 17968 / P1560 ⇒ page 28
Gearbox input speed when vehicle is driven (from gearbox input speed sender G182- ). A second mechanic is required for reading out the values
⇒ “3.1 Safety precautions”, page 11
– Gearshift must be completed, vehicle is not rolling downhill and not in overrun
after accelerating
• Gear “R” engaged
0 ... 2000 rpm
•
Gear “1”, “1m” engaged
0 ... 8200 rpm
•
Gear “2” engaged
0 ... 8200 rpm
•
Gear “3” engaged
0 ... 8200 rpm
•
Gear “4” engaged
0 ... 8200 rpm
•
Gear “5” engaged
2
If no value or an implausible value is displayed:
– Rectify fault as described for fault code 17100 / P0716 ⇒ page 18
0 ... 2000 rpm
– Check values in measured value block 007 ⇒ page 61 and perform road test
to determine which selector elements are defective or not activated
Gearbox output speed when vehicle is driven (from gearbox speed sender -G38- /
gearbox output speed sender -G195- ). A second mechanic is required for reading
out the values when vehicle is driven ⇒ “3.1 Safety precautions”, page 11
– Gearshift must be completed, vehicle is not rolling downhill and not in overrun
after accelerating
• Gear “R” engaged
0 ... 2000 rpm
•
Gear “1”, “1m” engaged
•
Gear “2” engaged
3
0 ... 4000 rpm
0 ... 5800 rpm
54
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
• Gear “3” engaged
with respect to the correctness of information in this document. Copyright by AUDI AG.
0 ... 8200 rpm
•
Gear “4” engaged
0 ... 8200 rpm
•
Gear “5” engaged
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display zones
Explanatory notes
If no value or an implausible value is displayed:
– Rectify fault as described for fault code 17100 / P0716 ⇒ page 18
1…5
– Check values in measured value block 007 ⇒ page 61 and perform road test
to determine which selector elements are defective or not activated
Gear engaged in gearbox when vehicle is driven. A second mechanic is required
for reading out the values ⇒ “3.1 Safety precautions”, page 11
• Selector lever in position “N”
R
The automatic gearbox control unit -J217- has an automatic gear pre-select dis‐
play function. The display shows the forwards gear that the control unit would
activate if the selector lever were to be moved into selector lever position “D”
• Selector lever in position “R”
4
“1m” “2” “3” “4” “5”
•
Selector lever in position “D”
“1m” “2” “3” “4”
•
Selector lever in position “S” or “4” 1)
“1m” “2” “3”
•
Selector lever in position “3” 1)
“1m” “2”
•
Selector lever in position “2” 1)
Defective solenoid valves or other faults may prevent a particular gear from being
engaged.
If the display readout does not appear as described:
– Check values for solenoid valves in measured value block 005 ⇒ page 59 ,
006 ⇒ page 60 and 007 ⇒ page 61
– Check values for selector lever position in measured value block 004
⇒ page 56
•
1)
Selector mechanism up to model year 2001.
Display group 002
Display zones
1
2
Explanatory notes
DS
Presently used shift program in normal driving conditions – depends on driving
style and road conditions (acceleration, accelerator pedal movement, vehicle
speed and load). A second mechanic is required for reading out the values
⇒ “3.1 Safety precautions”, page 11
• Dynamic shift program is activated – gearshifts are avoided as far as possible
WL
•
AS
If warm-up program is not activated after cold start:
– Check on-board diagnosis in measured value block 004 ⇒ page 58
• Traction control system activated
TT
•
…%
Warm-up program is activated – gearbox shifts up earlier to avoid high engine
speeds
tiptronic recognition activated
If tiptronic recognition is not activated with selector lever in appropriate position:
– Rectify fault as described for fault codes 18141 / P1733 ⇒ page 29 ,
18147 / P1739 ⇒ page 29 and 18152 / P1744 ⇒ page 29
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
Throttle valve
value
with
vehicle
stationary
and
engine
not running
– liability
the % value
permitted
unless
authorised
by AUDI
AG. AUDI AG
does
not guarantee
or accept any
rises continuously
when
pedalofis
movedin from
idlingCopyright
speedbytoAUDI
fullAG.
throttle
with respect
to thethe
correctness
information
this document.
• Specification - with accelerator pedal in idling position: 0 … 1 %
•
Specification - with accelerator pedal in full throttle position: 99 … 100 %
10. Measured value block
55
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display zones
Explanatory notes
If the display readout does not appear as described:
– Interrogate fault memory of engine control unit and rectify faults ⇒ Rep. Gr.
01
3
4
… rpm
…
– Check CAN bus wiring ⇒ page 89
Gearbox output speed ⇒ page 54 , measured value block 001, display zone 3
Gear engaged in gearbox ⇒ page 54 , measured value block 001, display zone
4
Display group 003
Display zones
1
Explanatory notes
…
Brake light switch -F- , vehicle stationary
– Press brake pedal
•
Display should show: “Brakes”
– Release brake pedal
•
Specification: No display readout
If the display readout does not appear as described:
– Vehicles up to model year 2000: Perform electrical check, test step No. 8
⇒ page 73
2
…
– Vehicles from model year 2001 onwards: Interrogate fault memory of engine
control unit and rectify fault ⇒ Rep. Gr. 01
Selector lever lock solenoid -N110- , vehicle stationary
– Press brake pedal
– Shift selector lever to position “P” or “N”
•
Specification: “P N inactive”
– Release brake pedal
•
3
… km/h
4
…V
Specification: “P N active”
If the display readout does not appear as described:
– Perform electrical check, test steps No. 2 ⇒ page 71 and No. 18
⇒ page 78
Vehicle speed when driving. A second mechanic is required for reading out the
values ⇒ “3.1 Safety precautions”, page 11 . Speedometer reading may be slightly
different from values on display -VAS 5051If no value is displayed:
– Check speedometer sender -G22Voltage supply, vehicle stationary
• Min. 10.0 V
•
Max. 16.0 V
If the specified value is not displayed:
– Perform electrical check, test step No. 1 ⇒ page 70
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
Display zones 1 and 2 in display group
004
with respect to the correctness of information in this document. Copyright by AUDI AG.
Display zones
1
56
… °C
Explanatory notes
ATF temperature with vehicle stationary and engine running (from gearbox oil
temperature sender -G93- (ATF))
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display zones
Explanatory notes
P
If an implausible value is displayed (e.g. display readout –50 °C indicates a short
to earth, display readout 180 °C indicates a short to positive or open circuit):
– Perform electrical check, test step No. 21 ⇒ page 79
Selector lever position (from multi-function switch -F125- ), vehicle stationary
• Selector lever in position “P”
R
•
Selector lever in position “R”
N
•
Selector lever in position “N”
D
•
Selector lever in position “D”
4
•
Selector lever in position “S” or “4” 1)
3
•
Selector lever in position “3” 1)
2
•
Selector lever in position “2” 1)
Z1 2)
•
Selector lever between positions “P” and “R” or between positions “R” and “D”
Z2 2)
•
Selector lever between positions “N” and “D”
Z3 2)
•
Selector lever between positions “D” and “S” or “4” 1)
•
Selector lever between positions “4” and “3” or between positions “3” and “2”
2
Z4 2)
1)
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with
to the correctness
of information
in this
document.
by AUDI AG.
If respect
the display
readout
does not
appear
asCopyright
described:
– Check multi-function switch -F125- in display zone 3
– Perform electrical check, test steps No. 4 ⇒ page 71 and No. 5
⇒ page 72
– If necessary, adjust selector lever cable ⇒ Automatic gearbox 01L, four-wheel
drive; Rep. Gr. 37
•
1)
•
2) Intermediate positions are displayed according to vehicle version. When the selector lever is moved
into one of these intermediate positions, “Z1”, “Z2”, “Z3” or “Z4” will be displayed on -VAS 5051- . However,
the display in the dash panel insert should not indicate that a gear has been selected, i.e. the display
should only show “PRND432” or “PRNDS”, without any of the gear positions being highlighted.
Selector mechanism up to model year 2001.
Note
The input signals from multi-function switch -F125- can be
checked on automatic gearbox control unit -J217- .
Display zone 3: (from
left to right)
L1
L2
L3
L4
Wiring to -J217- , con‐
tact
36
8
37
9
10. Measured value block
57
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display zone 3 in display group 004
1
Display
2
3
Explanatory notes
4
L1
1
L2
0
L3
0
L4
0
Multi-function switch -F125- , vehicle stationary
• Selector lever in position “P”
0
1
0
0
•
Selector lever in position “R”
1
1
1
0
•
Selector lever in position “N”
1
0
1
1
•
Selector lever in position “D”
0
1
1
1
•
Selector lever in position “S” or “4” 1)
0
0
0
1
•
Selector lever in position “3” 1)
0
0
1
0
•
Selector lever in position “2” 1)
1
1
0
0
•
Selector lever between positions “P” and “R” or between positions “R” and “D”
1
0
1
0
•
Selector lever between positions “N” and “D”
1
1
1
1
•
Selector lever between positions “D” and “S” or “4” 1)
0
0
1
1
•
Selector lever between positions “4” and “3” or between positions “3” and “2”
1)
If the display readout does not appear as described:
– Check multi-pin connector for contact corrosion and moisture
– Check wiring and connector according to current flow diagram
– Perform electrical check, test steps No. 4 ⇒ page 71 and No. 5
⇒ page 72
– If necessary, adjust selector lever cable ⇒ Automatic gearbox 01L, four-wheel
drive; Rep. Gr. 37
•
1)
Selector mechanism up to model year 2001.
Display zone 4 in display group 004 “torque reduction” (depending
on vehicle version)
Display
Explanatory notes
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
…
Torque reduction (ignition timing retardation) when vehicle is driven; Requirement:
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
engineofspeed
signal
OK. The
torque
is only activated during a gearshift.
with respect to the correctness
information
in this document.
Copyright
by reduction
AUDI AG.
A second mechanic is required for reading out the values
⇒ “3.1 Safety precautions”, page 11
– Accelerate vehicle rapidly from a standstill to make gearbox shift from one gear
to the other several times
•
Specification: “ME”
– No gearshift
•
58
Specification: No display readout
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display
Explanatory notes
If the display readout does not appear as described: The torque reduction may be
actuated only very briefly depending on driving conditions. This means because
the signal to the -VAS 5051- is relatively slow there may be situations where a brief
torque reduction is not registered
– Interrogate fault memory of engine control unit and rectify faults ⇒ Rep. Gr.
01
– Check CAN bus wiring ⇒ page 89
Display zone 4 in display group 004 “on-board diagnosis” (de‐
pending on vehicle version)
1
Display
2
3
Explanatory notes
4
On-board diagnosis information when vehicle is driven. A second mechanic is
required for reading out the values ⇒ “3.1 Safety precautions”, page 11
• “0” = Malfunction display switched off
X
X
X
X
•
“1” = Malfunction display switched on
•
“0” = Trip not completed
•
“1” = Trip completed
•
“0” = Gearbox warm-up not completed
•
“1” = Gearbox warm-up completed
•
“0” = Engine start not detected
•
“1” = Engine start detected
Display group 005
Display zones
Protected
by copyright. Copying for private or commercial purposes, in part or in whole, is not
Explanatory
notes
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
1
0
respect
to the correctness
of information
in this document.
Copyright
by AUDI AG.is required for
Solenoid with
valve
1 -N88when vehicle
is driven.
A second
mechanic
reading out the values ⇒ “3.1 Safety precautions”, page 11
• Not activated (inactive) with gear “3”, “4” or “5” engaged
X
•
Activated (active) with gear “P”, “R”, “N”, “D”, “2”, “1” or “1m” engaged
If the display readout does not appear as described:
– Check connectors for contact corrosion or moisture. Especially check the 16pin connector on gearbox between valve body and wiring harness
– Check wiring and connector according to current flow diagram
0
– Perform electrical check, test steps No. 9 ⇒ page 74 and No. 10
⇒ page 74
Solenoid valve 2 -N89- when vehicle is driven. A second mechanic is required for
reading out the values ⇒ “3.1 Safety precautions”, page 11
• Not activated (inactive) with gear “R”, “N”, “1”, “1m” or “5” engaged
X
•
2
Activated (active) with gear “2”, “3” or “4” engaged
10. Measured value block
59
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display zones
Explanatory notes
If the display readout does not appear as described:
– Check connectors for contact corrosion or moisture. Especially check the 16pin connector on gearbox between valve body and wiring harness
– Check wiring and connector according to current flow diagram
0
– Perform electrical check, test steps No. 9 ⇒ page 74 and No. 11
⇒ page 74
Solenoid valve 3 -N90- when vehicle is driven. A second mechanic is required for
reading out the values ⇒ “3.1 Safety precautions”, page 11
• Not activated (inactive) with gear “R”, “1”, “1m”, “2”, “3”, “4” or “5” engaged
X
•
3
Activated (active) with gear “P” or “N” engaged
If the display readout does not appear as described:
– Check connectors for contact corrosion or moisture. Especially check the 16pin connector on gearbox between valve body and wiring harness
– Check wiring and connector according to current flow diagram
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
test steps
No.to 9
page 74
and No.in 12
with respect
the⇒
correctness
of information
this document. Copyright by AUDI AG.
4
…
– Perform electrical check,
⇒ page 75
Gear engaged in gearbox ⇒ page 54 , measured value block 001, display zone
4
Display group 006
Display zones
1
…A
Explanatory notes
Specified current of automatic gearbox pressure regulating valve 1 -N215- when
vehicle is driven. A second mechanic is required for reading out the values
⇒ “3.1 Safety precautions”, page 11 . Various faults including defective pressure
regulating valves or brakes may prevent a particular gear from being engaged
• Min. 0.0 A
•
Max. 2.0 A
If specified value is not displayed:
– Check connectors for contact corrosion or moisture. Especially check the 16pin connector on gearbox between valve body and wiring harness
– Check wiring and connector according to current flow diagram
2
…A
– Perform electrical check, test steps No. 9 ⇒ page 74 and No. 13
⇒ page 76
Specified current of automatic gearbox pressure regulating valve 2 -N216- when
vehicle is driven. A second mechanic is required for reading out the values
⇒ “3.1 Safety precautions”, page 11 . Various faults including defective pressure
regulating valves or brakes may prevent a particular gear from being engaged
• Min. 0.0 A
•
Max. 2.0 A
If specified value is not displayed:
– Check connectors for contact corrosion or moisture. Especially check the 16pin connector on gearbox between valve body and wiring harness
– Check wiring and connector according to current flow diagram
– Perform electrical check, test steps No. 9 ⇒ page 74 and No. 14
⇒ page 76
60
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display zones
3
…A
Explanatory notes
Specified current of automatic gearbox pressure regulating valve 3 -N217- when
vehicle is driven. A second mechanic is required for reading out the values
⇒ “3.1 Safety precautions”, page 11 . Various faults including defective pressure
regulating valves or brakes may prevent a particular gear from being engaged
• Min. 0.0 A
•
Max. 2.0 A
If specified value is not displayed:
– Check connectors for contact corrosion or moisture. Especially check the 16pin connector on gearbox between valve body and wiring harness
– Check wiring and connector according to current flow diagram
4
…A
– Perform electrical check, test steps No. 9 ⇒ page 74 and No. 15
⇒ page 77
Specified current of automatic gearbox pressure regulating valve 5 -N233- when
vehicle is driven. A second mechanic is required for reading out the values
⇒ “3.1 Safety precautions”, page 11 . Various faults including defective pressure
regulating valves or brakes may prevent a particular gear from being engaged
• Min. 0.0 A
•
Max. 2.0 A
If specified value is not displayed:
– Check connectors for contact corrosion or moisture. Especially check the 16pin connector on gearbox between valve body and wiring harness
– Check wiring and connector according to current flow diagram
– Perform electrical check, test steps No. 9 ⇒ page 74 and No. 17
⇒ page 78
Display group 007
Display zones
1
2
Explanatory notes
… °C
…A
ATF temperature ⇒ page 56 , measured value block 004, display zone 1
Specified current of automatic gearbox pressure regulating valve 4 -N218- when
vehicle is driven. A second mechanic is required for reading out the values
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
⇒ “3.1
Safety
precautions”,
page
permitted unless authorised by AUDI AG. AUDI
AG does
not guarantee
or accept any
liability11 . Various faults including defective pressure
regulating
valves
or brakes
with respect to the correctness of information
in this document.
Copyright
by AUDI may
AG. prevent a particular gear from being engaged
• Min. 0.0 A
•
Max. 2.0 A
If specified value is not displayed:
– Check connectors for contact corrosion or moisture. Especially check the 16pin connector on gearbox between valve body and wiring harness
– Check wiring and connector according to current flow diagram
3
TC open
– Perform electrical check, test steps No. 9 ⇒ page 74 and No. 16
⇒ page 77
Torque converter lock-up clutch when vehicle is driven. A second mechanic is
required for reading out the values ⇒ “3.1 Safety precautions”, page 11
• TC = Torque converter lock-up clutch open
TC ctrl.
•
TC = Torque converter lock-up clutch in “control phase”
TC closed
•
TC closed = Torque converter lock-up clutch closed
– Rectify fault as described for fault code 17125 / P0741 ⇒ page 22
10. Measured value block
61
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display zones
4
Explanatory notes
Torque converter slip speed when vehicle is driven. A second mechanic is re‐
quired for reading out the values ⇒ “3.1 Safety precautions”, page 11
0 rpm … stall speed • When “TC open”
20 ... 120 rpm
•
When “TC ctrl.”. The values specified apply when the “control phase” of torque
converter lock-up clutch is concluded. Under unfavourable conditions (e.g.
accelerating up a hill) this state will not be reached until 20 seconds after the
gearshift has been completed. During this control phase the slip speeds can
reach up to 350 rpm
0 ... 20 rpm
•
When “TC closed”: The gearshift must be completed (wait at least 1 second),
the torque converter lock-up clutch (TC) must be closed (engaged) and the
accelerator pedal value must be constant.
If the display readout does not appear as described:
– Check ATF level ⇒ Automatic gearbox 01L, four-wheel drive; Rep. Gr. 37
– Rectify fault as described for fault codes 17105 / P0721 ⇒ page 19 and 17125 /
Protected by copyright. Copying for
private or⇒commercial
purposes, in part or in whole, is not
P0741
page 22
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
– Excessively high torque converter slip speeds may also be an indication of
slipping brakes or non-activation of selector elements. Determine which se‐
lector element is defective or not activated ⇒ Automatic gearbox 01L, fourwheel drive; Rep. Gr. 37
– Check comparative plausibility of engine speed, gearbox input speed and
gearbox output speed in measured value block 001 ⇒ page 54
Display group 008
Display zones
1
Explanatory notes
…
Kick-down switch -F8- , vehicle stationary, engine switched off
– Press down accelerator pedal past kick-down point
•
Display should show: “Kick-down” ("100%" should be displayed in display
zone “2” at the same time)
– Release accelerator pedal from kick-down point
•
2
3
…%
…
Specification: No display readout
If the display readout does not appear as described:
– Perform electrical check, test step No. 7 ⇒ page 73
Throttle valve value ⇒ page 55 , measured value block 002, display zone 2
Overrun/acceleration signal when vehicle is driven. A second mechanic is re‐
quired for reading out the values ⇒ “3.1 Safety precautions”, page 11
– Allow vehicle to roll downhill or to roll in overrun after accelerating; do not press
accelerator pedal
•
Specification: “Overrun”
– Accelerate the vehicle
•
62
Specification: No display readout
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display group 009
Display zones
1
Explanatory notes
... Nm
Engine torque when vehicle is driven. A second mechanic is required for reading
out the values ⇒ “3.1 Safety precautions”, page 11 . When the vehicle is being
driven with gear engaged, the displayed engine torque required during gearshift
remains at a constant level, since no torque reduction is required
The actual engine torque signal is transmitted from engine control unit to gearbox
control unit via CAN bus
If no value or an implausible value is displayed:
– Interrogate fault memory of engine control unit and rectify faults ⇒ Rep. Gr.
01
– Check identification of automatic gearbox control unit -J217- ⇒ page 13
2
3
4
… rpm
…%
… Nm 1)
– Check CAN bus wiring ⇒ page 89
Engine speed ⇒ page 54 , measured value block 001, display zone 1
Throttle valve value ⇒ page 55 , measured value block 002, display zone 2
Gearbox input torque when vehicle is driven. A second mechanic is required for
reading out the values ⇒ “3.1 Safety precautions”, page 11
• Should match display zone 1
Can be ignored
•
1)
Display of gearbox input torque depends on vehicle version.
Display group 010
Display zones
1
Explanatory notes
…
2
3
Torque increase in torque converter when vehicle is driven. A second mechanic
is required for reading out the values ⇒ “3.1 Safety precautions”, page 11
• 0 … 3.2 (calculated by gearbox control unit on the basis of the torque converter
slip speed)
… rpm
Engine speed ⇒ page 54 , measured value block 001, display zone 1
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted
unless authorised
AUDI AG. AUDI
AG does not⇒
guarantee
any liability value block 001, display zone
…
Gear by
engaged
in gearbox
page or54accept
, measured
with respect to the4correctness of information in this document. Copyright by AUDI AG.
Actual vehicle acceleration rate when vehicle is driven. A second mechanic is
... m/s2 1)
required for reading out the values ⇒ “3.1 Safety precautions”, page 11
• Min. –10 m/s2
4
•
Max. 10 m/s2
Can be ignored
•
1)
Display of actual vehicle acceleration rate depends on vehicle version.
Display group 011
Display zones
1
2
Explanatory notes
…
Selector lever position ⇒ page 56 , measured value block 004, display zone 2
tiptronic switch -F189- (recognition), vehicle stationary
10. Measured value block
63
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display zones
Explanatory notes
– Move selector lever into tiptronic gate
•
Specification: “M switch”
– Move selector lever out of tiptronic gate
•
3
…
Specification: No display readout
If the display readout does not appear as described:
– Perform electrical check, test step No. 22 ⇒ page 79
tiptronic switch -F189- (shift up/shift down), vehicle stationary
– Move selector lever into tiptronic gate
– Operate shift up function (+) and keep selector lever pressed forwards or press
and hold + button on multi-function steering wheel
•
Specification: “UP button”
– Operate shift down (–) function and keep selector lever pressed towards the
rear or press and hold – button on multi-function steering wheel
•
Specification: “DOWN button”
If the display readout does not appear as described:
– Perform electrical check, test step No. 23 ⇒ page 80
Display group 012
Display zones
Explanatory notes
1
E
Type of driving, load condition when vehicle is driven. A second mechanic is re‐
quired for reading out the values ⇒ “3.1 Safety precautions”, page 11
• Driving without engine load, e.g. on level road
B
•
2
0 … 255
3
4
0 … 255
0 … 255
Driving with engine load, e.g. uphill
Can be ignored
Driving dynamics index when vehicle is driven – calculation based on motion re‐
sistance index and driving style factor. A second mechanic is required for reading
Protected
by copyright.
Copying for private
or commercial
purposes, in part or in whole, is not
Safety
precautions”,
page
11
out the values ⇒ “3.1
unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
Can be ignored permitted
with respect to the correctness of information in this document. Copyright by AUDI AG.
Motion resistance index – required for calculation of driving dynamics index
Driving style factor – required for calculation of driving dynamics index
Display group 013 1)
Display zones
Explanatory notes
1
... Nm
2
0 … 63
3
1
64
CAN bus calibration torque
Can be ignored
CAN bus engine code. After renewing the engine control unit the same display
readout should appear as for the old control unit. If this display readout does not
appear, an incorrect engine control unit has been installed or the control unit is
incorrectly coded
If the specified value is not displayed:
– Check engine control unit identification; interrogate fault memory of engine
control unit and rectify faults ⇒ Rep. Gr. 01
– Check identification of automatic gearbox control unit -J217- ⇒ page 13
CAN bus gearbox code
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Display zones
4
0 … 63
Explanatory notes
If the specified value is not displayed:
– Check coding of engine control unit ⇒ Rep. Gr. 01
CAN bus software version code. After renewing the engine control unit the same
display readout should appear as for the old control unit. If this display readout
does not appear, an incorrect engine control unit has been installed or the control
unit is incorrectly coded
If the specified value is not displayed:
– Check engine control unit identification ⇒ Rep. Gr. 01
– Check identification of automatic gearbox control unit -J217- ⇒ page 13
•
1)
Measured value block 013 is displayed according to vehicle version.
Display group 125 1)
Display zones
1
Explanatory notes
Engine 1
Communication with Motronic control unit -J220- or diesel direct injection system
control unitProtected
-J248-by:copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
• Information
received
from engine
control
via Copyright
CAN bus
withis
respect
to the correctness
of information
in this unit
document.
by AUDI AG.
Engine 0
•
No information is received from engine control unit via CAN bus
If “0” is displayed and no fault is entered in the fault memory:
– Check engine control unit identification and make sure that correct control unit
capable of transmitting data via CAN bus is fitted: For correct version refer to
⇒ Parts catalogue . Or if control unit is defective
ABS 1
– Check CAN bus wiring ⇒ page 89
Communication with ABS with EDL control unit -J104- :
• Information is received from ABS control unit via CAN bus
ABS 0
•
2
No information is received from ABS control unit via CAN bus
If “0” is displayed and no fault is entered in the fault memory:
– Check ABS control unit identification and make sure that correct control unit
capable of transmitting data via CAN bus is fitted. For correct version refer to
⇒ Parts catalogue . Or if control unit is defective
– Check CAN bus wiring ⇒ page 89
3
Steering wheel 1
Communication with steering angle sender -G85- 2):
• Information is received from steering angle sender via CAN bus
Steering wheel 0
•
No information is received from steering angle sender via CAN bus
If “0” is displayed and no fault is entered in the fault memory:
– Check control unit identification for steering angle sender and make sure that
correct control unit capable of transmitting data via CAN bus is fitted. For cor‐
rect version refer to ⇒ Parts catalogue . Or if control unit is defective
– Check CAN bus wiring ⇒ page 89
•
1)
Measured value block 125 is displayed according to vehicle version.
•
2)
The display for steering angle sender will only appear as of model year 2002.
10. Measured value block
65
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
11
Electrical check
Special tools and workshop
equipment required
♦ Hand-held multimeter V.A.G 1526 A- , V.A.G 1526 B- or vehicle
diagnostic, testing and in‐
formation system VAS 5051- with test leads VAS 5051/7♦ Voltage tester -V.A.G 1527
B♦ Adapter set -V.A.G 1594 Aor -V.A.G 1594 C♦ Adapter -V.A.G 1598/20(test box)
The test steps apply to:
♦ Vehicles for which self-diagnosis does not indicate the source
of the fault. In this case it is necessary to perform the complete
electrical check.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
♦ Vehicles for which self-diagnosis
specific
sourcein this document. Copyright by AUDI AG.
with indicates
respect to the the
correctness
of information
of the fault. Then only perform the test steps recommended in
the fault table (selective fault-finding).
Requirements
•
Vehicle voltage supply OK.
•
Fuses OK ⇒ Current flow diagrams, Electrical fault finding and
Fitting locations.
•
Earth connections have been checked for corrosion and poor
contact ⇒ Current flow diagrams, Electrical fault finding and
Fitting locations.
•
Battery earth strap and earth strap between gearbox and body
have been checked for corrosion and poor contact.
•
All electrical consumers have been switched off.
66
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
11.1
Connecting adapter -V.A.G 1598/20(test box) to automatic gearbox control
unit -J217-
– Unscrew bolts -1- a few turns.
– Unclip plenum chamber cover -2- (right-side) -arrows- and de‐
tach cover.
– Remove cross-head bolts -arrows- (for access to bolt at rear
left lever out cover -1- in cowl panel trim).
– Detach cover for electronics box in plenum chamber.
– Unclip gearbox
control unit -3- from electronics box.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
– To unplug multi-pin connector on gearbox control unit, release
connector by pressing catch in direction of -arrow-. Before do‐
ing this, switch off the ignition and wait for at least 30 seconds.
11. Electrical check
67
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
– Connect adapter -V.A.G 1598/20- (test box) to automatic gear‐
box control unit -J217- .
Caution
To avoid damaging the electronic components, always select
the appropriate measuring range on the tester before connect‐
ing the test leads and observe the test requirements.
– Carry out all the test steps listed in the column headed “Fault
rectification if readout does not match specification”.
– Only perform the test steps recommended in the fault table
(selective fault-finding).
– After performing electrical check, fit 88-pin connector onto pins
of automatic gearbox control unit -J217- and then lock in place.
Note
♦ Use hand-held multimeter -V.A.G 1526 B- with test leads from
-V.A.G 1594 C- or vehicle diagnostic, testing and information
system -VAS 5051- with test leads -VAS 5051/7- for checking.
♦ The socket designations of the adapter -V.A.G 1598/20- (test
box) are identical to the contact designations of the automatic
gearbox control unit -J217- in the current flow diagram.
♦ Adhere to correct test procedure to avoid damage to the sys‐
tem. Apart from the connectors listed in the test table, no other
bridges may be connected.
♦ The given specifications are valid for an ambient temperature
from 10 … 40 °C.
♦ If the measured values differ from the specifications, deter‐
mine fault using current flow diagram.
♦ If the measured values differ only slightly from the specifica‐
tions, clean sockets and connectors of the testers and test
leads (use contact spray -G 000 700 04- ) and repeat test.
♦ Before renewing components it is necessary to check the wir‐
ing and connectors first. Particularly if specifications are below
10 Ω, repeat resistance measurement at component.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
88-pin connector
on automatic gearbox control unit -J217- / sock‐
with respect to the correctness of information in this document. Copyright by AUDI AG.
ets on adapter -V.A.G 1598/20- (test box)
1 - Automatic gearbox pressure regulating valve 2
-N2162 - Selector lever lock solenoid -N1103 - Vacant
68
Rep. Gr.01 - Self-diagnosis, electrical checks
32 - Solenoid valve 3 -N9033 - Solenoid valve 2 -N8934 - Earth (terminal 31)
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
4 - Automatic gearbox pressure regulating valve 4
-N2185 - Automatic gearbox pressure regulating valve 1
-N2156 - Earth (terminal 31)
7 - Vacant
8 - Multi-function switch -F125- L2
9 - Multi-function switch -F125- L4
Vehicles with throttle cable: Voltage supply for
cruise control system
10 - Up to model year 2000: Brake light switch -FFrom model year 2001 onwards: Vacant
11 - Vacant
35 - Vacant
36 - Multi-function switch -F125- L1
37 38 39 40 -
Multi-function switch -F125- L3
Vacant
Vacant
Vacant
41 - Vacant
42 - Gearbox speed sender -G38- / gearbox output
speed sender -G195Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted12
unless
authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
- Vacant
43 - Vacant
with respect to the correctness of information in this document. Copyright by AUDI AG.
13 - tiptronic recognition
44 - Gearbox input speed sender -G18214 - Gearbox speed sender -G38- / gearbox output 45 - Vacant
speed sender -G19515 - Gearbox speed sender -G38- / gearbox output 46 - tiptronic upshift
speed sender -G195- (screening)
16 - Gearbox input speed sender -G18247 - tiptronic downshift
17 - Vacant
48 - Vacant
18 - Vacant
49 - Vacant
19 - Vacant
50 - Vacant
20 - Vacant
51 - Automatic gearbox pressure regulating valve 5
-N23321 - Gearbox oil temperature sender -G93- (ATF)
52 - Voltage supply for solenoid valves
22 - Gearbox oil temperature sender -G93- (ATF)
53 - Voltage supply for solenoid valves
23 - Gearbox input speed sender -G182- (screen‐
54 - Voltage supply (terminal 15)
ing)
24 - Vacant
55 - Voltage supply (terminal 15)
25 - Up to model year 1998: Selector lever position 56 - Sockets 56 ... 83 are vacant
display -Y6From model year 1999 onwards: Vacant
26 - Voltage supply (terminal 30)
83 27 - Vacant
85 - CAN bus (screening)
28 - Up to model year 1999: Earth for electronics
85 - CAN bus Low
(terminal 31)
From model year 2000 onwards: Vacant
29 - Automatic gearbox pressure regulating valve 3 86 - CAN bus High
-N21730 - Solenoid valve 1 -N8887 - Vacant
31 - Vacant
88 - Diagnosis K wire
11.2
Test table
Overview of test steps
Component to be checked
Test step
Voltage supply for automatic gearbox control unit J217Selector lever lock solenoid -N110-
– Perform test steps No. 1 ⇒ page 70 and No. 6
⇒ page 73
– Perform test steps No. 2 ⇒ page 71 and No. 18
⇒ page 78
11. Electrical check
69
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Component to be checked
Test step
Voltage supply for cruise control system
Multi-function switch -F125-
– Perform test step No. 3 ⇒ page 71
– Perform test steps No. 4 ⇒ page 71 and No. 5
⇒ page 72
Kick-down switch -F8– Perform test step No. 7 ⇒ page 73
Brake light switch -F– Perform test step No. 8 ⇒ page 73
Solenoid valve 1 -N88– Perform test steps No. 9 ⇒ page 74 and No. 10
⇒ page 74
Solenoid valve 2 -N89– Perform test steps No. 9 ⇒ page 74 and No. 11
⇒ page 74
Solenoid valve 3 -N90– Perform test steps No. 9 ⇒ page 74 and No. 12
⇒ page 75
Automatic gearbox pressure regulating valve 1 -N215- – Perform test steps No. 9 ⇒ page 74 and No. 13
⇒ page 76
Automatic gearbox pressure regulating valve 2 -N216- – Perform test steps No. 9 ⇒ page 74 and No. 14
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
⇒ page 76
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect
to the correctness
of information
Copyright
by AUDI
Automatic gearbox pressure regulating valve 3 -N217– Perform
test steps
No.in9this
⇒ document.
page 74
and No.
15AG.
⇒ page 77
Automatic gearbox pressure regulating valve 4 -N218- – Perform test steps No. 9 ⇒ page 74 and No. 16
⇒ page 77
Automatic gearbox pressure regulating valve 5 -N233- – Perform test steps No. 9 ⇒ page 74 and No. 17
⇒ page 78
Gearbox output speed sender -G195– Perform test step No. 19 ⇒ page 78
Gearbox input speed sender -G182– Perform test step No. 20 ⇒ page 79
Gearbox oil temperature sender -G93- (ATF)
– Perform test step No. 21 ⇒ page 79
tiptronic switch -F189– Perform test steps No. 22 ⇒ page 79 and No. 23
⇒ page 80
Test step No. 1
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
26 + 6
Voltage supply
• Ignition switched off
26 + 28 1) (terminal 30) for
26 + 34 automatic gear‐ – Switch to voltage
box control unit measuring range
J217-
Approx. – Check wiring according to cur‐
battery volt‐
rent flow diagram:
♦ From contact 26 to terminal 30
age
♦ From contacts 6, 28 and 34 to
earth
55 + 6
Voltage supply
– Switch on ignition
55 + 28 1) (terminal 15) for
55 + 34 automatic gear‐
box control unit J21755 + 54
•
1)
70
Terminal 28 is used up to model year 1999 only.
Rep. Gr.01 - Self-diagnosis, electrical checks
Approx. – Check wiring according to cur‐
battery volt‐
rent flow diagram:
♦ From contacts 55 or 54 to termi‐
age
nal 15
♦ From contacts 6, 28 and 34 to
earth
0V
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Test step No. 2
-V.A.G
1598/20sockets
2+6
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
Selector lever
lock solenoid N110-
•
Ignition switched on
– Switch to voltage
measuring range
Approx. – Check wiring according to cur‐
battery volt‐
rent flow diagram
age
– Check multi-function switch F125- for short circuit
– Check selector lever lock sole‐
noid -N110- for short circuit
– Perform test step No. 18
⇒ page 78
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Test step No. 3
-V.A.G
1598/20sockets
9+6
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
Only vehicles
•
with throttle ca‐
ble: Voltage sup‐ •
ply for cruise con‐
trol system
–
Ignition switched on
Switch to voltage
measuring range
Selector lever in “D”,
“4” or “3”
– Selector lever in “P”,
“R”, “N” or “2”
Approx. – Check wiring according to cur‐
battery volt‐
rent flow diagram
age
Less than – Perform test step No. 4
⇒ page 71
5V
Test step No. 4
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
36 + 6
Multi-function
switch -F125-
•
Ignition switched on
•
Switch to voltage
measuring range
11. Electrical check
71
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
– Selector lever in “P”,
“N”, “D”
– Selector lever in “R”,
“S” or “4”, “3”, “2”
– Selector lever in “R”,
“N”, “S” or “4”
8+6
– Selector lever in “P”,
“D”, “3”, “2”
– Selector lever in “N”,
“D”, “S” or “4”, “2”
37 + 6
– Selector lever in
“P”,“R”, “3”
– Selector lever in “D”,
“S” or “4”, “3”
9+6
– Selector lever in “P”,
“R”, “N”, “2”
Approx. – Check multi-function switch
battery volt‐
connector for contact corrosion
age
Less than – Check multi-function switch
⇒ “11.4 Checking multi-function
1V
switch F125 with 8-pin connec‐
Approx.
tor”, page 82 or
battery volt‐
⇒ “11.5 Checking multi-function
age
switch F125 with 10-pin connec‐
tor”, page 85
Less than
1V
– Perform test step No. 5
Approx.
⇒ page 72
battery volt‐
age
Less than
1V
Approx.
battery volt‐
age
Less than
1V
Test step No. 5
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
36 + 55
Multi-function
switch -F125-
•
Ignition switched off
•
Switch to resistance
measuring range
8 + 55
37 + 55
9 + 55
72
– Selector lever in “P”,
Less than – Check multi-function switch
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
“N”, “D”
1Ω
connector for contact corrosion
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with
respect
to
the
correctness
of
information in this document. Copyright by AUDI AG.
– Selector lever in “P”,
∞Ω
– Check multi-function switch
“R”, “D”, “S” or “4”, “3”,
⇒ “11.4 Checking multi-function
“2”
switch F125 with 8-pin connec‐
– Selector lever in “R”,
Less than
tor”, page 82 or
“N”, “S” or “4”
1Ω
⇒ “11.5 Checking multi-function
switch F125 with 10-pin connec‐
– Selector lever in “P”,
∞Ω
tor”, page 85
“D”, “3”, “2”
– Selector lever in “N”,
Less than – Perform test step No. 4
“D”, “S” or “4”, “2”
1Ω
⇒ page 71
– Selector lever in
∞Ω
“P”,“R”, “3”
– Selector lever in “D”,
Less than
“S” or “4”, “3”
1Ω
– Selector lever in “P”,
∞Ω
“R”, “N”, “2”
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Test step No. 6
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
6 + earth at Earth connec‐
• Ignition switched off
battery
tions for automat‐
ic gearbox control – Switch to resistance
unit -J217measuring range
28 1) + earth
at battery
34 + earth
at battery
• 1) Terminal 28 is used up to model year 1999 only.
Less than – Check wiring according to cur‐
1Ω
rent flow diagram
Less than
1Ω
Less than
1Ω
Test step No. 7
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
18 + 54
Kick-down switch •
-F8•
Ignition switched on
Switch to voltage
measuring range
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
– Accelerator
pedal not Less than – Check wiring and connectors
with respect to the correctness of information in this document. Copyright by AUDI AG.
operated
5V
according to current flow dia‐
gram
– Accelerator pedal
Approx.
pressed down past
battery volt‐
– Vehicles with throttle cable: Ad‐
kick-down point
age
just throttle cable; renew if nec‐
• Ignition switched off
essary ⇒ Rep. Gr. 20
•
Switch to resistance
measuring range
– Accelerator pedal not
operated
– Accelerator pedal
pressed down past
kick-down point
– Renew kick-down switch ⇒
Rep. Gr. 20
∞Ω
Less than
1.5 Ω
Test step No. 8
-V.A.G
1598/20sockets
10 + 6
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
Only vehicles up •
to model year
2000: Brake light •
switch -F-
Ignition switched off
Switch to voltage
measuring range
– Brake pedal not de‐
pressed
– Brake pedal de‐
pressed
Less than – Check wiring and connectors
1V
according to current flow dia‐
gram
Approx.
battery volt‐
– Renew brake light switch -F- ⇒
age
Brake system; Rep. Gr. 46
11. Electrical check
73
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Test step No. 9
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
52 + 53
Voltage supply
• Ignition switched off
wires to solenoid
valves
– Switch to resistance
measuring range
Up to model year 2001 Less than – Check wiring according to cur‐
1.5 Ω
rent flow diagram
From model year 2002
∞Ω
– Check wiring from automatic
onwards
gearbox control unit -J217- to
16-pin connector ⇒ page 80
– Perform test step No. 1
⇒ page 70
– Check wiring harness in gear‐
box according to current flow di‐
agram; renew if necessary
Test step No. 10
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
30 + 52
Solenoid valve 1 - • Ignition switched off
N88– Switch to resistance
measuring range
30 + 34
25 … 35 Ω – Check 16-pin connector to gear‐
box for contact corrosion
∞Ω
– Perform test step No. 9
⇒ page 74
– Check wiring from automatic
gearbox control unit -J217- to
16-pin connector ⇒ page 80
– Check wiring harness in gear‐
box according to current flow di‐
agram; renew if necessary
– Renew solenoid valve ⇒ Auto‐
matic gearbox 01L, four-wheel
drive; Rep. Gr. 38
Test step No. 11
-V.A.G
1598/20sockets
Items tested
33 + 52
Solenoid valve 2 - •
N89-
74
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
Ignition switched off
Rep. Gr.01 - Self-diagnosis, electrical checks
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
– Switch to resistance
measuring range
33 + 34
25 … 35 Ω – Check 16-pin connector to gear‐
box for contact corrosion
∞Ω
– Perform test step No. 9
⇒ page 74
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
– Check wiring from automatic
gearbox control unit -J217- to
16-pin connector ⇒ page 80
– Check wiring harness in gear‐
box according to current flow di‐
agram; renew if necessary
– Renew solenoid valve ⇒ Auto‐
matic gearbox 01L, four-wheel
drive; Rep. Gr. 38
Test step No. 12
-V.A.G
1598/20sockets
Items tested
32 + 52
Solenoid valve 3 - • Ignition switched off
N90– Switch to resistance
measuring range
32 + 34
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
25 … 35 Ω – Check 16-pin connector to gear‐
box for contact corrosion
∞Ω
– Perform test step No. 9
⇒ page 74
– Check wiring from automatic
gearbox control unit -J217- to
16-pin connector ⇒ page 80
– Check wiring harness in gear‐
box according to current flow di‐
agram; renew if necessary
– Renew solenoid valve ⇒ Auto‐
matic gearbox 01L, four-wheel
drive; Rep. Gr. 38
11. Electrical check
75
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Test step No. 13
-V.A.G
1598/20sockets
5 + 52
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
Automatic gear‐ • Ignition switched off
box pressure reg‐
ulating valve 1 - – Switch to resistance
N215measuring range
5 + 34
6 … 10 Ω – Check 16-pin connector to gear‐
box for contact corrosion
∞Ω
– Perform test step No. 9
⇒ page 74
– Check wiring from automatic
gearbox control unit -J217- to
16-pin connector ⇒ page 80
– Check wiring harness in gear‐
box according to current flow di‐
agram; renew if necessary
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
– AGRenew
solenoid
valve
Auto‐
permitted unless authorised by AUDI AG. AUDI
does not guarantee
or accept
any⇒
liability
gearbox
01L,
four-wheel
with respect to the correctness of information in matic
this document.
Copyright
by AUDI
AG.
drive; Rep. Gr. 38
Test step No. 14
-V.A.G
1598/20sockets
1 + 53
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
Automatic gear‐ • Ignition switched off
box pressure reg‐
ulating valve 2 - – Switch to resistance
N216measuring range
1 + 34
6 … 10 Ω – Check 16-pin connector to gear‐
box for contact corrosion
∞Ω
– Perform test step No. 9
⇒ page 74
– Check wiring from automatic
gearbox control unit -J217- to
16-pin connector ⇒ page 80
– Check wiring harness in gear‐
box according to current flow di‐
agram; renew if necessary
– Renew solenoid valve ⇒ Auto‐
matic gearbox 01L, four-wheel
drive; Rep. Gr. 38
76
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Test step No. 15
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
29 + 53
Automatic gear‐ • Ignition switched off
box pressure reg‐
ulating valve 3 - – Switch to resistance
N217measuring range
29 + 34
6 … 10 Ω – Check 16-pin connector to gear‐
box for contact corrosion
∞Ω
– Perform test step No. 9
⇒ page 74
– Check wiring from automatic
gearbox control unit -J217- to
16-pin connector ⇒ page 80
– Check wiring harness in gear‐
box according to current flow di‐
agram; renew if necessary
– Renew solenoid valve ⇒ Auto‐
matic gearbox 01L, four-wheel
drive; Rep. Gr. 38
Test step No. 16
-V.A.G
1598/20sockets
4 + 52
4 + 34
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
Automatic gear‐ • Ignition switched off
box pressure reg‐
ulating valve 4 - – Switch to resistance
N218measuring range
6 … 10 Ω – Check 16-pin connector to gear‐
box for contact corrosion
∞Ω
– Perform test step No. 9
⇒ page 74
– Check wiring from automatic
gearbox control unit -J217- to
16-pin connector ⇒ page 80
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
– Check wiring harness in gear‐
box according to current flow di‐
agram; renew if necessary
– Renew solenoid valve ⇒ Auto‐
matic gearbox 01L, four-wheel
drive; Rep. Gr. 38
11. Electrical check
77
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Test step No. 17
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
51 + 53
Automatic gear‐ • Ignition switched off
box pressure reg‐
ulating valve 5 - – Switch to resistance
N233measuring range
51 + 34
6 … 10 Ω – Check 16-pin connector to gear‐
box for contact corrosion
∞Ω
– Perform test step No. 9
⇒ page 74
– Check wiring from automatic
gearbox control unit -J217- to
16-pin connector ⇒ page 80
– Check wiring harness in gear‐
box according to current flow di‐
agram; renew if necessary
– Renew solenoid valve ⇒ Auto‐
matic gearbox 01L, four-wheel
drive; Rep. Gr. 38
Test step No. 18
-V.A.G
1598/20sockets
2 + 54
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
Selector lever
• Ignition switched off
lock
solenoid
- Copying for private or commercial purposes, in part or in whole, is not
Protected
by copyright.
Selector
lever
at not
posi‐
permitted unless authorised•by AUDI
AG. AUDI
AG does
guarantee or accept any liability
N110“P” in this document. Copyright by AUDI AG.
with respect to the correctnesstion
of information
– Switch to resistance
measuring range
14 … 28 Ω – Check wiring according to cur‐
rent flow diagram
– Renew selector lever lock sole‐
noid ⇒ Automatic gearbox 01L,
four-wheel drive; Rep. Gr. 37
Test step No. 19
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
14 + 42
Gearbox output
speed sender G195-
•
Ignition switched off
– Switch to resistance
measuring range
14 + 34
14 + 54
42 + 54
42 + 34
15 + 34
15 + 54
78
Screening for
gearbox output
speed sender G195-
Rep. Gr.01 - Self-diagnosis, electrical checks
Min. 0.8 kΩ – Check wiring according to cur‐
rent flow diagram
Max. 1.2 kΩ
∞Ω
– Renew gearbox output speed
sender ⇒ Automatic gearbox
01L, four-wheel drive; Rep. Gr.
38
∞Ω
– Check wiring according to cur‐
rent flow diagram
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Test step No. 20
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
16 + 44
Gearbox input
speed sender G182-
•
Ignition switched off
•
88-pin connector dis‐
connected from con‐
trol unit
– Switch
to resistance
Protected by copyright. Copying for private or commercial
purposes,
in part or in whole, Min.
is not 230 Ω
range
permitted unless authorised by AUDI AG. AUDI AG measuring
does not guarantee
or accept any liability
Max.
300 Ω
with respect to the correctness of information in this document. Copyright by AUDI AG.
44 + 34
44 + 54
16 + 54
16 + 34
23 + 34
23 + 54
∞Ω
Screening for
gearbox input
speed sender G182-
∞Ω
– Check wiring according to cur‐
rent flow diagram
– Renew gearbox input speed
sender ⇒ Automatic gearbox
01L, four-wheel drive; Rep. Gr.
38
– Check wiring according to cur‐
rent flow diagram
Test step No. 21
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
21 + 22
Gearbox oil tem‐ • Ignition switched off
perature sender – Switch to resistance
G93- (ATF)
measuring range
– Measure ATF temper‐
ature
Approx. 20 °C
Approx. 60 °C
Approx. 120 °C
21 + 34
22 + 34
21 + 54
22 + 54
•
1)
Approx.
0.83 kΩ1)
Approx.
1.28 kΩ1)
Approx.
1.88 kΩ1)
∞Ω
– Check wiring from automatic
gearbox control unit -J217- to
16-pin connector ⇒ page 80
– Check wiring harness in gear‐
box according to current flow di‐
agram; renew if necessary (the
gearbox oil (ATF) temperature
sender is integrated in wiring
harness) ⇒ Automatic gearbox
01L, four-wheel drive; Rep. Gr.
38
∞Ω
Permissible tolerance: ± 0.1 kΩ.
Test step No. 22
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
13 + 54
tiptronic switch F189- (recogni‐
tion)
•
Ignition switched on
•
Switch to voltage
measuring range
11. Electrical check
79
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
-V.A.G
1598/20sockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
– Selector lever not in
tiptronic gate
– Selector lever in tip‐
tronic gate
Less than – Check wiring according to cur‐
1V
rent flow diagram
Approx.
battery volt‐ – Renew tiptronic switch ⇒ Auto‐
matic gearbox 01L, four-wheel
age
drive; Rep. Gr. 37
Test step No. 23
-V.A.G
1598 Asockets
Items tested
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
46 + 54
47 + 54
tiptronic switch F189- (shift up/
shift down)
•
Ignition switched on
•
Switch to voltage
measuring range
46 + 54
47 + 54
11.3
– Shift up button (+) or Less than – Check wiring according to cur‐
shift down button (–)
1V
rent flow diagram
not operated
– Operate shift up func‐ Approx. – Renew tiptronic switch ⇒ Auto‐
matic gearbox 01L, four-wheel
tion (+) and keep se‐ battery volt‐
drive; Rep. Gr. 37
lector lever pressed
age
forwards or press and
hold + button on mul‐
ti-function steering
wheel
– Operate shift down (–) Approx.
function and keep se‐ battery volt‐
lector lever pressed
age
towards the rear or
press and hold – but‐
ton on multi-function
steering wheel
Checking wiring between automatic
gearbox control unitProtected
-J217and gearbox
by copyright.
Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
Carry out the following test if the final control
diagnosis
or theof information in this document. Copyright by AUDI AG.
with respect
to the correctness
electrical check indicate a fault between gearbox and automatic
gearbox control unit -J217- .
– Connect adapter -V.A.G 1598/20- (test box) to automatic gear‐
box control unit -J217- ⇒ page 67 .
– On vehicles fitted with auxiliary heater, remove screws
-arrows- securing exhaust pipe of auxiliary/ additional heater
to noise insulation.
80
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
– Release fasteners -1- and detach noise insulation.
– Fold out release tab -4- and disconnect gearbox wiring har‐
ness connector.
– If necessary, detach bracket -1- for noise insulation.
– Connect multimeter for resistance measurement between
contacts on the 16-pin connector and the sockets on adapter
-V.A.G 1598/20- (test box), as shown in the following table.
•
Specification: in each case less than 1.5 Ω.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Connector
Contact
-V.A.G 1598/20Socket
Connector
Contact
-V.A.G 1598/20Socket
1
2
3
4
5
6
7
8
Contact vacant
5
1
32
16
44
29
30
9
10
11
12
13
14
15
16
33
Contact vacant
4
52
22
21
51
53
11. Electrical check
81
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Note
♦ If readout does not match specification, rectify open circuit in
wiring according to current flow diagram and check connector
for contact corrosion, moisture and leaks.
♦ If readout obtained in this wiring check matches specification,
the wiring harness in the gearbox must be checked. In order
to do this, remove valve body ⇒ Automatic gearbox 01L, fourwheel drive; Rep. Gr. 38 .
♦ If no faults are detected in the wiring harness in the gearbox,
renew relevant solenoid valves or pressure regulating valves,
in order to do this, remove valve body ⇒ Automatic gearbox
01L, four-wheel drive; Rep. Gr. 38 .
11.4
Checking multi-function switch -F125with 8-pin connector
Note
♦ Read measured value block 004 for multi-function switch be‐
fore performing electrical check.
♦ Make sure that selector lever cable is properly adjusted ⇒
Automatic gearbox 01L, four-wheel drive; Rep. Gr. 37 .
– On vehicles fitted with auxiliary heater, remove screws
-arrows- securing exhaust pipe of auxiliary/ additional heater
to noise insulation.
– Release fasteners -arrows- and detach noise insulation.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
82
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
– Unplug connector -2- of multi-function switch -F125- at front
left of gearbox.
Contact assignment at 8-pin connector of multi-function switch F125- .
Test step No. 1
Contacts on Items tested
-F1251+2
1+3
1+4
1+5
Multi-function
switch -F125-
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
•
unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
Ignition switched permitted
offwith respect
to the correctness of information in this document. Copyright by AUDI AG.
•
Switch to resistance
measuring range
– Selector lever in “P”,
“N”, “D”
– Selector lever in “R”,
“4”, “3”, “2”
– Selector lever in “R”,
“N”, “4”
– Selector lever in “P”,
“D”, “3”, “2”
– Selector lever in “N”,
“D”, “4”, “2”
– Selector lever in
“P”,“R”, “3”
– Selector lever in “D”,
“4”, “3”
– Selector lever in “P”,
“R”, “N”, “2”
Less than – Check connector at multi-func‐
1Ω
tion switch for contact corrosion,
moisture or loose fitting
∞Ω
Less than
1Ω
∞Ω
– Check selector lever cable ad‐
justment ⇒ Automatic gearbox
01L, four-wheel drive; Rep. Gr.
37
Less than
1Ω
– Renew multi-function switch ⇒
Automatic gearbox 01L, fourwheel drive; Rep. Gr. 37
∞Ω
Less than
1Ω
∞Ω
11. Electrical check
83
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Test step No. 2
Contacts on Items tested
-F1256+7
P/N signal from
multi-function
switch -F125-
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
•
Ignition switched off
•
Switch to resistance
measuring range
– Selector lever in “R”,
“D”, “4”, “3”, “2”
– Selector lever in “P”,
“N”
∞Ω
– Check connector at multi-func‐
tion switch for contact corrosion,
moisture or loose fitting
Less than
1Ω
– Check selector lever cable ad‐
justment ⇒ Automatic gearbox
01L, four-wheel drive; Rep. Gr.
37
– Renew multi-function switch ⇒
Automatic gearbox 01L, fourwheel drive; Rep. Gr. 37
Test step No. 3
Contacts on Items tested
-F1251+8
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
Reversing light
•
signal from multifunction switch - •
F125-
Ignition switched off
Switch to resistance
measuring range
– Selector lever in “P”,
“N”, “D”, “4”, “3”, “2”
– Selector lever in “R”
∞Ω
– Check connector at multi-func‐
tion switch for contact corrosion,
moisture or loose fitting
Less than
1Ω
– Check selector lever cable ad‐
justment ⇒ Automatic gearbox
01L,
four-wheel
drive; Rep. Gr.
Protected by copyright. Copying for private or commercial purposes,
in part
or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee
37 or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
– Renew multi-function switch ⇒
Automatic gearbox 01L, fourwheel drive; Rep. Gr. 37
Checking voltage supply of multi-function switch
– Connect multimeter for voltage measurement between con‐
tacts -1- and -6- of the 8-pin connector.
– Switch on ignition.
•
Specification: approx. battery voltage.
If readout does not match specification:
– Repair wiring ⇒ Current flow diagrams, Electrical fault finding
and Fitting locations.
Checking wiring between 8-pin connector for multi-function switch
and gearbox control unit
– Connect adapter -V.A.G 1598/20- (test box) to automatic gear‐
box control unit -J217- ⇒ page 67 .
84
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
– Connect multimeter for resistance measurement between
contacts on the 8-pin connector and the sockets on adapter V.A.G 1598/20- (test box), as shown in the following table.
Connector
Contact
1
2
3
4
5
6
7
8
Adapter -1598/20(test box)
Socket
Specification
54 and 55
Less than 1.5 Ω
36
Less than 1.5 Ω
8
Less than 1.5 Ω
37
Less than 1.5 Ω
9
Less than 1.5 Ω
6, 34 and 28 if nec‐
Less than 1.5 Ω
essary
⇒ page 84 , Test step No. 2
⇒ page 84 , Test step No. 3
Note
♦ If readout does not match specification, rectify open circuit in
wiring according to current flow diagram and check connector
for contact corrosion, moisture and leaks.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
♦respect to the correctness of information in this document. Copyright by AUDI AG.
with
If readout obtained in this wiring check matches specification,
the multi-function switch -F125- must be renewed ⇒ Auto‐
matic gearbox 01L, four-wheel drive; Rep. Gr. 37 .
11.5
Checking multi-function switch -F125with 10-pin connector
Note
♦ Read “measured value block 004” for multi-function switch be‐
fore performing electrical check.
♦ Make sure that selector lever cable is properly adjusted ⇒
Automatic gearbox 01L, four-wheel drive; Rep. Gr. 37 .
– On vehicles fitted with auxiliary heater, remove screws
-arrows- securing exhaust pipe of auxiliary/ additional heater
to noise insulation.
11. Electrical check
85
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
– Release fasteners -arrows- and detach noise insulation.
– Unplug connector -2- of multi-function switch -F125- at front
left of gearbox.
Contact assignment at 10-pin connector of multi-function switch
-F125- .
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Test step No. 1
Contacts on Items tested
-F1251+2
1+3
1+4
Multi-function
switch -F125-
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
•
Ignition switched off
•
Switch to resistance
measuring range
– Selector lever in “P”,
“N”, “D”
– Selector lever in “R”,
“S” or “4”, “3”, “2”
– Selector lever in “R”,
“N”, “S” or “4”
– Selector lever in “P”,
“D”, “3”, “2”
– Selector lever in “N”,
“D”, “S” or “4”, “2”
– Selector lever in
“P”,“R”, “3”
86
Rep. Gr.01 - Self-diagnosis, electrical checks
Less than – Check connector at multi-func‐
1Ω
tion switch for contact corrosion,
moisture or loose fitting
∞Ω
Less than
1Ω
∞Ω
– Check selector lever cable ad‐
justment ⇒ Automatic gearbox
01L, four-wheel drive; Rep. Gr.
37
Less than
1Ω
– Renew multi-function switch ⇒
Automatic gearbox 01L, fourwheel drive; Rep. Gr. 37
∞Ω
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Contacts on Items tested
-F1251+5
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
– Selector lever in “D”,
“S” or “4”, “3”
– Selector lever in “P”,
“R”, “N”, “2”
Less than
1Ω
∞Ω
Test step No. 2
Contacts on Items tested
-F1259 + 10
P/N signal from
multi-function
switch -F125-
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
•
Ignition switched off
•
Switch to resistance
measuring range
– Selector lever in “R”,
“D”, “S” or “4”, “3”, “2”
– Selector lever in “P”,
“N”
∞Ω
– Check connector at multi-func‐
tion switch for contact corrosion,
moisture or loose fitting
Less than
1Ω
– Check selector lever cable ad‐
justment ⇒ Automatic gearbox
01L, four-wheel drive; Rep. Gr.
37
– Renew multi-function switch ⇒
Automatic gearbox 01L, fourwheel drive; Rep. Gr. 37
Test step No. 3
Contacts on Items tested
-F1257+8
Test conditions and addi‐ Specifica‐ Fault rectification if readout does
tional steps
tion
not match specification
Reversing light
•
signal from multifunction switch - •
F125-
Ignition switched off
Switch to resistance
measuring range
– Selector lever in “P”,
∞Ω
– Check connector at multi-func‐
“N”, “D”, “S” or “4”, “3”,
tion switch for contact corrosion,
“2”
moisture or loose fitting
– Selector lever in “R”
Less than
– Check selector lever cable ad‐
1Ω
justment ⇒ Automatic gearbox
01L, four-wheel drive; Rep. Gr.
37
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
– Renew multi-function switch ⇒
Automatic gearbox 01L, fourwheel drive; Rep. Gr. 37
11. Electrical check
87
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
Checking voltage supply of multi-function switch
– Connect multimeter for voltage measurement between con‐
tacts -1- and -10- and between contacts -7- and -10- of the 10pin connector.
– Switch on ignition.
•
Specification: approx. battery voltage each time.
If a readout does not match specification:
– Repair wiring ⇒ Current flow diagrams, Electrical fault finding
and Fitting locations.
Checking wiring between 10-pin connector for multi-function
switch and gearbox control unit
– Connect adapter -V.A.G 1598/20- (test box) to automatic gear‐
box control unit -J217- ⇒ page 67 .
– Connect multimeter for resistance measurement between
contacts on the 10-pin connector and the sockets on adapter
-V.A.G 1598/20- (test box), as shown in the following table.
Connector
Contact
1
2
3
4
5
6
7
8
9
10
Adapter -1598/20(test box)
Socket
Specification
54 and 55
Less than 1.5 Ω
36
Less than 1.5 Ω
8
Less than 1.5 Ω
37
Less than 1.5 Ω
9
Less than 1.5 Ω
Contact vacant
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
unlessNo.
authorised
⇒ page 87 ,permitted
Test step
2 by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
⇒ page 87 , Test step No. 3
Note
♦ If readout does not match specification, rectify open circuit in
wiring according to current flow diagram and check connector
for contact corrosion, moisture and leaks.
♦ If readout obtained in this wiring check matches specification,
the multi-function switch -F125- must be renewed ⇒ Auto‐
matic gearbox 01L, four-wheel drive; Rep. Gr. 37 .
88
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
12
CAN bus
Bus:
Bus is the term used to describe a data transfer and distribution
system.
CAN:
A Controller Area Network is a bus system operating with two
wires. They are called bus wires. The bus wires transmit data
signals in serial form (one after the other) to the control units con‐
nected to the system.
The following control units communicate via the bus, i.e. data ex‐
change between the various control units is carried out via the
CAN data bus.
1-
Automatic gearbox control unit -J217-
2-
BUS driver
3-
Motronic control unit -J220- or diesel direct injection system
control unit -J248-
4-
BUS driver
5-
Matching resistor
6-
Drivetrain data bus (CAN bus, two wires twisted together)
7-
Matching resistor
8-
BUS driver
9-
ABS with EDL control unit -J104-
12.1
Checking a “two-wire bus system”
Test sequence
– Refer to the appropriate current flow diagram to check how
many control units communicate via the bus.
– Connect vehicle diagnostic, testing and information system VAS 5051- ⇒ page 11 and select function “00 - Automatic test
sequence”. The ignition must be switched on.
– Before checking the bus wires, make sure that there is no
malfunction in any of the control units connected to the bus. A
malfunction will cause interference in the communication with
other control units.
Note
In this context "malfunction" does not mean a fault occurring in
the bus system itself, but refers to a fault which is impairing the
correct functioning of a particular system (e.g. defective sensor).
copyright.
Copying for private or commercial purposes, in part or in whole, is not
As a result of the malfunction, the bus system Protected
can nobylonger
proc‐
permitted
unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
ess the sensor signal for data transmission. Such
a
malfunction
respect to the correctness of information in this document. Copyright by AUDI AG.
has an indirect influence on the bus system, aswith
communication
with the other control units requiring this particular sensor signal
is impaired.
If a malfunction exists
– Repair it first.
– Print out the fault list and erase the fault memories of all control
units, see “Interrogate fault memory” and “Erase fault memory”
for each control unit.
12. CAN bus
89
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
– Select function “06 - End output”.
– Rectify malfunctions as described in the fault tables in the rel‐
evant Workshop Manuals.
Have all malfunctions been eliminated?
– If the communication between the control units is still not work‐
ing properly, check the bus wires.
– When tracing faults in the bus wires, distinguish between two
Protected
by copyright.
possible
cases:Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect
to the
correctness
of information in this document.
Copyright by AUDI
♦ Two
control
units
are communicating
via a “two-wire
busAG.
sys‐
tem” ⇒ page 90 .
♦ Three or more control units are communicating via a “two-wire
bus system” ⇒ page 91 .
12.2
Two control units communicating via a
“two-wire bus system”
– Switch off ignition.
– Detach the multi-pin connectors at both control units.
– Check whether there is an open circuit in one of the bus wires
⇒ Current flow diagrams, Electrical fault finding and Fitting lo‐
cations.
– Check whether there is a short circuit between the bus wires
⇒ Current flow diagrams, Electrical fault finding and Fitting lo‐
cations.
– Check whether there is a short to positive or short to earth in
one of the bus wires.
If no fault is detected in the bus wires:
– As a trial measure, renew whichever control unit is easier (or
less expensive) to change.
If the control units are still not communicating via the bus:
– Renew the second control unit.
90
Rep. Gr.01 - Self-diagnosis, electrical checks
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
12.3
Three or more control units communi‐
cating via a “two-wire bus system”
Example 1:
From the faults stored in the fault memories you can see that
control unit -1- is not connected to control units -2- and -3-.
Control unit Faults stored in fault memory
-1-
♦ No message from control unit -2♦ No message from control unit -3-
-2-
♦ No message from control unit -1-
-3-
♦ No message from control unit -1-
– Switch off ignition.
– Detach the electrical connectors at the control units which are
linked by the bus wires and check whether there is an open
circuit in one of the bus wires ⇒ Current flow diagrams, Elec‐
trical fault finding and Fitting locations.
Example 2:
From the faults in the fault memories you can see that control unit
-2- is not connected to control units -1- and -3-.
Control unit Faults stored in fault memory
-1-
♦ No message from control unit -2-
-2-
♦ No message from control unit -1♦ No message from control unit -3-
-3-
♦ No message from control unit -2-
– Switch off ignition.
– Detach the electrical connectors at the control units which are
linked by the bus wires and check whether there is an open
circuit in one of the bus wires ⇒ Current flow diagrams, Elec‐
trical fault finding and Fitting locations.
Example 3:
From the faults stored in the fault memories, you can see that
none of the control units are able to transmit or receive signals.
Control unit Faults stored in fault memory
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permitted
by AUDI
AUDI AG does not guarantee or accept any liability
-1- unless♦authorised
Control
unitAG.defective
with respect to the correctness of information in this document. Copyright by AUDI AG.
-2-
♦ Control unit defective
-3-
♦ Control unit defective
– Switch off ignition.
– Detach the electrical connectors at the control units which are
linked by the bus wires and check whether there is a short
circuit between the bus wires ⇒ Current flow diagrams, Elec‐
trical fault finding and Fitting locations.
12. CAN bus
91
Audi A8 1994 ➤
Automatic gearbox 01L, self-diagnosis - Edition 06.2005
– Check the bus wires for short to positive or earth.
– If the cause of the fault “control unit defective” cannot be found
in the bus wires, check whether one of the control units is
causing the fault.
•
The connectors at all control units which communicate via the
CAN bus are detached.
•
Ignition switched off.
– Connect one of the control units.
– Connect vehicle diagnostic, testing and information system VAS 5051- ⇒ page 11 .
– Switch on ignition and select the relevant vehicle system.
– Interrogate and erase the fault memory of the control unit
which has just been connected.
– Exit function “05 - Erase fault memory” by touching ← button.
– Select function “06 - End output”.
– Switch the ignition off and then on again.
– Leave the ignition switched on for 10 seconds. Then interrog‐
ate the fault memory of the control unit that has just been
connected.
If the fault “control unit defective” is displayed:
– Renew the control unit that has just been connected.
If the fault “control unit defective” is not displayed:
– Connect the next control unit and repeat the above procedure.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
92
Rep. Gr.01 - Self-diagnosis, electrical checks